fix(fluids): Don't use IntArrayC2P in diff filter

IntArrayC2P frees the input array, when I need both the `PetscInt` array
and the `CeedInt` array.

DMSwarm Example with Interpolation and Projection (#1284)

* petsc - initial DMSwarm example

* swarm - links and runs

* swarm - fixed default box dims

* swarm - clearer error messages

* s

DMSwarm Example with Interpolation and Projection (#1284)

* petsc - initial DMSwarm example

* swarm - links and runs

* swarm - fixed default box dims

* swarm - clearer error messages

* swarm - clearer background mesh setup requirements

* swarm - Tensor bad :(

* Fix inequality direction for verification

* swarm - add viewing command

* swarm - DMSwarmPICField_coor

* swarm - DMSwarmGetCellDM

* swarm - dm_plex_hash_location true

* fix coordinate ordering

* "working" two-way projection

* libceed mostly correct, off by a permutation or something

* add tolerance parameter and make test succeed

* Use DMProjectFunction to support high-order bases

* minor clarity change

* prefer PetscPrintf over printf

* consistency

* minor - make uniform vs sin distributed points cl option

* fix VLA declaration

* minor reorganizing

* swarm value check in separate fn

* minor reorg and rename

* style

* separate interpolate logic into its own fns

* consistency

* fix error message

* woops, use field name arg

* improve indexing, switch to uniform for test

* fix multiple comp

* drop unused function

* draft documentation

* style

* Update PETSc style documentation

Co-authored-by: Zach Atkins <zach.atkins@colorado.edu>

* Update examples/petsc/dmswarm.c

* add create/destroy for ceed ctx object

* use libCEED rstr

* add P2C/C2P utils

* minor simplifications

* add projection swarm to mesh

* minor

* update gitignore

* add gauss point locations, lumped comparison

* simplify uniform/gauss coords logic

* fix segfault

* drop comparison - can replicate with CL options

* add polynomial target option

* minor tidying

* revert accidental change

* lumped test

* update tolerance option description

Co-authored-by: Zach Atkins <zach.atkins@colorado.edu>

* add points_per_cell option

* Fix siliness by Jeremy

Co-authored-by: Zach Atkins <zach.atkins@colorado.edu>

* fix scoping and logic

* style

* discontinuous sphere target

* add cellwise random swarm

---------

Co-authored-by: Zach Atkins <zach.atkins@colorado.edu>

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Merge pull request #1349 from CEED/jrwrigh/remove_ctx_update

fluids: Use normal `CeedOperatorSetContextDouble` instead of `UpdateContextLabel`

fluids: Use normal CeedOperatorSetContextDouble

That instead of `UpdateContextLabel`, as #1347 built that functionality
into the normal label setting functions themselves

fluids: Fix 64bit Int typing issues

fluids: Add ASAN, Correct memory out-of-bounds error

minor - spelling is hard

fluids: Use explicit array size for new_bounds

- `new_bounds` was previously changed to remove the explicit array size
declaration because Sycl's online compiler didn't like it.
- Trying to do

fluids: Use explicit array size for new_bounds

- `new_bounds` was previously changed to remove the explicit array size
declaration because Sycl's online compiler didn't like it.
- Trying to do a direct cast results in:
```
/home/jrwrigh/software/libCEED/examples/fluids/problems/../qfunctions/sgs_dd_model.h:67:39: error: used type 'const CeedScalar[6][2]' (aka 'const double[6][2]') where arithmetic or pointer type is required
const CeedScalar new_bounds[6][2] = (const CeedScalar[6][2]) & sgsdd_ctx->data[sgsdd_ctx->offsets.out_scaling];
^ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
```
- This represents the best compromise; can't do a direct pointer cast
(requiring more compiler work to be efficient and obfuscating what's
happening), but can at least keep the explicit array sizes for
`new_bounds`

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fluids: Change variable name "local" to appease ocloc

- For reasons only God knows, ocloc (online compiler for OpenCL for
Intel hardware) doesn't approve of the variable name `local`. It
returns

fluids: Change variable name "local" to appease ocloc

- For reasons only God knows, ocloc (online compiler for OpenCL for
Intel hardware) doesn't approve of the variable name `local`. It
returns:
```
$ build/fluids-navierstokes -ceed /gpu/sycl/ref -options_file examples/fluids/tests-output/stats_test.yaml -test_type solver -compare_final_state_atol 1e-11 -compare_final_state_filename examples/fluids/tests-output/fluids-navierstokes-turb-spanstats-stats.bin
Command was: ocloc -q -spv_only -device pvc -64 -options "-cl-std=CL3.0 -Dint32_t=int" -file main.cl
[0]PETSC ERROR: --------------------- Error Message --------------------------------------------------------------
[0]PETSC ERROR: Error in external library
[0]PETSC ERROR: /home/jczhang/libCEED/backends/sycl/ceed-sycl-compile.sycl.cpp:73 in CeedJitCompileSource_Sycl(): ocloc reported compilation errors: {
Build failed with error code: -11
}
```

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Merge pull request #1315 from CEED/jeremy/queep

Backend Consistency Fixes

fluids: Fix Sycl related arguments

- These arguments work fine in CUDA and HIP, but OpenCL (specifically,
the online compiler used for Sunspot) isn't happy with these minor
changes in pointer de

fluids: Fix Sycl related arguments

- These arguments work fine in CUDA and HIP, but OpenCL (specifically,
the online compiler used for Sunspot) isn't happy with these minor
changes in pointer definitions.

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style - spell rstr consistently

test: Add fluids test for MatShell code

- Previously, `-amat_type shell -pmat_pbdiagonal` weren't tested at all
- This also helps to test `CeedOperatorLinearAssemblePointBlockDiagonalSymbolic`

Add CeedOperatorLinearAssemblePointBlockDiagonalSymbolic

fluids: Add QF value qdata packing/unpacking

interface - rename CEED_BASIS_COLLOCATED to CEED_BASIS_NONE

Interface consistency fixes (#1312)

* format - consistency fixes

* format - test name consistency

* format - drop comma operator

* format - drop git add . in favor coercion

* format - ad

Interface consistency fixes (#1312)

* format - consistency fixes

* format - test name consistency

* format - drop comma operator

* format - drop git add . in favor coercion

* format - add CeedScalarSwap macro

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fixup! fluids: Add DMPlexCeedElemRestriction*Create

fluids: Document and clarify spanstats restriction creation

- The restriction creation for the spanwise statistics is a pretty
special case, so better name the functions and document what exactl

fluids: Document and clarify spanstats restriction creation

- The restriction creation for the spanwise statistics is a pretty
special case, so better name the functions and document what exactly
it is doing

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fluids: Add DMPlexCeedElemRestriction*Create

Replaces CreateRestrictionFromPlex and GetRestrictionForDomain

fluids: Misc changes to functions

fluids: Rename files with *_NS suffix

fluids: Correct PetscFunction{Return,BeginUser} placement

- Respect the PETSc standard for style (https://petsc.org/release/developers/style/#coding-conventions-and-style)

fluids: Remove misc comments

- Either by inaccuracy of unnecessary

fluids: Make function names in consistent format

- Mainly remove `_` and acronymns with more than 2 letters should
respect CamelCase (ie. `StgFunction` not `STGFunction`)