feat: Move differential filtering into separate header

feat: Move sgs_dd_data into Honee container

feat: Move grad_velo_proj into Honee container

fix: Move enum strings to compilation units

style: jac_data_size -> num_comps_jac_data

Includes:
- jac_data_size_sur -> num_comps_jac_data
- jac_data_size_vol -> num_comps_jac_data
- jac_data_size -> num_comps_jac_data

feat(bc): Shrink jac_data_size to that being used

refactor: Delete SimpleBC struct

bc(inflow): Convert inflow bc to use BCDef functions

bc(outflow): Convert outflow bc to use BCDef functions

bc(freestream): Convert freestream bc to use BCDef functions

bc(slip): Convert slip bc to use BCDef functions

refactor(bc): Extract Outflow from freestream files

Outflow should be treated separately from freestream

tg: Add background_velocity option for TaylorGreen IC

feat: Add -mass_ksp_view_pre_ts_solve

Views mass ksp once before solve. Also sets up the KSP so that the
information is complete.

feat(newt): Add div(Fdiff) projection to RHS

style: Refactor fluids -> HONEE

feat: Add -ts_monitor_cfl

fix(stg): Skip dx when using strong STG

Strong STG determines the element sizes based on the elements
themselves, therefore dx doesn't need to be calculated from the
box_faces flag (and it will erro

fix(stg): Skip dx when using strong STG

Strong STG determines the element sizes based on the elements
themselves, therefore dx doesn't need to be calculated from the
box_faces flag (and it will error out when it tries to do so)

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fix: Destroy Ceed objects due to libCEED #1702

refactor: Rename advection flags to `-advection_ic_*`

style(advdif): Use switch for IC-specific flags

feat(advdif): Add bl_height_factor option

style: Move Newtonian unit test to bottom of file

style: Use CeedOperatorFieldGetData

fix: Destroy objects from CeedOperatorFieldGet*