Add fluid result averaging, FluidMeshInfo, and Faces #1326

Job	Run time
debug	1s
Retro-compatibility (3.10, windows-latest, 232)	11m 22s
Retro-compatibility (3.10, windows-latest, 231)	5m 53s
Retro-compatibility (3.10, windows-latest, 222)	5m 11s
Retro-compatibility (3.10, windows-latest, 221)	6m 1s
Retro-compatibility (3.10, ubuntu-latest, 232)	9m 44s
Retro-compatibility (3.10, ubuntu-latest, 231)	5m 1s
Retro-compatibility (3.10, ubuntu-latest, 222)	3m 42s
Retro-compatibility (3.10, ubuntu-latest, 221)	4m 22s
Style Check	1m 9s
tests (3.7, windows-latest)	11m 21s
tests (3.7, ubuntu-latest)	11m 28s
tests (3.8, windows-latest)	11m 22s
tests (3.8, ubuntu-latest)	9m 9s
tests (3.9, windows-latest)	11m 19s
tests (3.9, ubuntu-latest)	11m 9s
tests (3.10, windows-latest)	11m 19s
tests (3.10, ubuntu-latest)	11m 27s
docs / Documentation	10m 34s
examples / Setup	1s
docs / Check doc style / Documentation Style Check	1m 7s
examples / Run Examples (3.10, windows-latest)	11m 9s
examples / Run Examples (3.10, ubuntu-latest)	6m 54s
upload-development-docs	0s
	2h 50m 45s

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