refactor(fluids): Move stats ceed_data to SpanStatsSetupData

- Add create/destroy functions for SpanStatsSetupData
- Moved SF creation inside CreateStatsSF
- Removed unused members from user->spa

refactor(fluids): Move stats ceed_data to SpanStatsSetupData

- Add create/destroy functions for SpanStatsSetupData
- Moved SF creation inside CreateStatsSF
- Removed unused members from user->spanstats
- Added destroy of elem_restr_qx (a fix)
- Moved all parent L2 projection related operations into SetupL2ProjectionStats
- Removed QFunction members from SpanStatsSetupData (no need to keep
them beyond operator creation)

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fluids: Add MatopApplyContextDestroy

fluids: Distribute parent DM on creation

fluids: Get comm from dm in turb_spanstats.c

- Don't use guess at the MPIComm, just use the one based on the
(appropriate) DM
- Misc formatting too

fluids: Stats collection weighted in QFunction

- Allows for only keeping one CeedVector for child statistics

doc(fluids): Document change in test flag

fluids: Add turb spanstats test, change test option

- `-test` changed to `-test_type` enum to test different outputs

fluids: Use enum for turbulence statistics components

- Also change the filenames to be more specific
- Define num_comp_stats via TURB_NUM_COMPONENTS

Co-authored-by: Jed Brown <jed@jedbrown.org>

fluids: Change turb_spanstats CL option names

- Options controlling the actual TSMonitor are under
`ts_monitor_turbulence_spanstats_*`
- `stats_enable` removed in favor of
`ts_monitor_turbulence

fluids: Change turb_spanstats CL option names

- Options controlling the actual TSMonitor are under
`ts_monitor_turbulence_spanstats_*`
- `stats_enable` removed in favor of
`ts_monitor_turbulence_spanstats_viewer` being the statistics switch
- Related objects excluding the viewer (such as the dm and ksp) get the
prefix `turbulence_spanstats`
- Change the `stats_test` related functions and variables to use the
`mms` nomenclature, since they're method of manufactured solutions.

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fluids: Require spanstats collection when writing

- Otherwise, stats may be written to file with a timestep/solution time
associated with it that wasn't collected.

examples/fluids: fix stats after restart

* Switch from reweighted average to running sum of child stats
* Initialize sp_stats->prev_time after restart
* Use TS reason instead of extra flag
* Skip

examples/fluids: fix stats after restart

* Switch from reweighted average to running sum of child stats
* Initialize sp_stats->prev_time after restart
* Use TS reason instead of extra flag
* Skip redundant monitor call; monitors always get called after last step (converged or not)
* Close memory leak

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fluids: Create UpdateBoundaryValues, fix statistics

- Statistics would fail when non-zero strong bcs were used due to Q_loc
not containing those values. Instead, use user->Q_loc and call
UpdateB

fluids: Create UpdateBoundaryValues, fix statistics

- Statistics would fail when non-zero strong bcs were used due to Q_loc
not containing those values. Instead, use user->Q_loc and call
UpdateBoundaryValues to verify that the boundaries are set.

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fluids: Add Stats Setup log stage

fluids: Misc cleanup to CreateStatsDM

fluids: Create Stats DM for periodic face

- Note this relies on the periodicity being isoperiodic rather than
topologicially periodic.

Co-authored-by: Jed Brown <jed@jedbrown.org>

fluids: Use persistent viewer for statistics

- Use prefix 'stats_viewer'
- Particularly useful for setting `stats_viewer_cgns_batch_size`

fluids: Remove StatsCollectFinalCall

- Effectively duplicate of TSMonitor_Statistics

doc(fluids): New spanwise statistics gathering flags

fluids: Destory statistics objects at the end

fluids: Add log stages to statistics

fluids: Check result of statistics testing

fluids: Implement statistics collection

fluids: Add stats collection QF

fluids: Add solution time to newtonian context

fluids: Allow communication overlap in IFunction