Merge MR !148, 'jrwrigh/newt_fluid_properties', into 'main'

refactor: Extract Newtonian fluid properties from primary Newtonian context

Closes #38

See merge request phypid/honee!148

refactor: Extract NewtonianIGProperties from NewtonianIdealGasContext

Merge MR !72, 'jrwrigh/jit_changes', into 'main'

fix: Change QFunctions to account for libCEED#1696

See merge request phypid/honee!72

fix: Change QFunctions to account for libCEED#1696

Merge branch 'jrwrigh/refactor' into 'main'

refactor: Use utils in setupgeo helpers, other misc refactors

See merge request phypid/honee!37

fix(stg): Use CalculateElementLengths for ICs

Merge branch 'jrwrigh/refactor_nom' into 'main'

refactor: norm -> normal, and others

See merge request phypid/honee!25

refactor: norm -> normal, and others

Merge branch 'jrwrigh/license_changes' into 'main'

Update License post libCEED fork

See merge request phypid/honee!6

chore: Move to Apache-2.0 OR BSD-2-Clause

Merge branch 'jrwrigh/fluids_grad_boundaries' into 'main'

Add cell to face basis, implement in strong STG

See merge request phypid/honee!19

stg: Create separate CalculateElementLengths function

- This also centralizes the note regarding the functions failure on
tetrahedral elements

bc: Implement 3D dXdx for strong STG

- Used for determining element size in STG calculation

Merge pull request #1606 from CEED/jrwrigh/ken_stg_additions

fluids: Add dyScale and dz to STG options

Merge pull request #1110 from CEED/zach/entropy-variables

Add Entropy Variables to libCEED fluids NS mini-app

fluids: Add h_scale_factor to STG options

fluids: Proliferate entropy variables, add test

Co-authored-by: Zach Atkins <zacharyjayhawk@gmail.com>

Merge pull request #1550 from CEED/jrwrigh/consistent_fluids_qf

refactor(fluids): Make QF comments consistent

refactor(fluids): Make QF comments consistent

See discussion: https://github.com/CEED/libCEED/pull/1539#discussion_r1548312418

Drop JiT Guards in Most QF Source (#1540)

* backend - use pragma once

* gallery - drop source header guards

* ex - drop some qfunction source header guards

* fluids - drop guards on all sin

Drop JiT Guards in Most QF Source (#1540)

* backend - use pragma once

* gallery - drop source header guards

* ex - drop some qfunction source header guards

* fluids - drop guards on all singly included headers

* jit - drop most guards on backend JiT files

* sycl - drop extra header guards

* jit - enable #pragma once for QF source

* fluids - use #pragma once for util/helper qf source

* test - check different multiple includes

* fluids - fix odd include

* jit - update interface for building JiT string from multiple files

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Merge pull request #1537 from CEED/jeremy/pragma-once

Use #pragma once for non-JiT headers

minor - update copyright headers

fluids: Add QF value qdata packing/unpacking

Merge pull request #1259 from CEED/jrwrigh/fluids-cleanup

fluids: Misc cleanup

fluids: Make function names in consistent format

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