Composition operations

[MFraters]

The pull requests expand the operation enum and functions for the compositional plugins and lets them use it.

[codecov]

Codecov Report

Merging #474 (c79e54f) into main (47a54c2) will decrease coverage by 0.01%.
The diff coverage is 100.00%.

❗ Current head c79e54f differs from pull request most recent head e98dd27. Consider uploading reports for the commit e98dd27 to get more accurate results

@@            Coverage Diff             @@
##             main     #474      +/-   ##
==========================================
- Coverage   90.80%   90.80%   -0.01%     
==========================================
  Files          90       90              
  Lines        6371     6370       -1     
==========================================
- Hits         5785     5784       -1     
  Misses        586      586              

Impacted Files	Coverage Δ
...fault_models/grains/random_uniform_distribution.cc	98.52% <ø> (ø)
...ld_builder/features/fault_models/grains/uniform.cc	97.87% <ø> (ø)
...plate_models/grains/random_uniform_distribution.cc	98.52% <ø> (ø)
...features/subducting_plate_models/grains/uniform.cc	95.74% <ø> (ø)
...es/continental_plate_models/composition/uniform.cc	100.00% <100.00%> (ø)
.../continental_plate_models/temperature/adiabatic.cc	100.00% <100.00%> (ø)
...res/continental_plate_models/temperature/linear.cc	100.00% <100.00%> (ø)
...es/continental_plate_models/temperature/uniform.cc	100.00% <100.00%> (ø)
source/world_builder/features/fault.cc	99.63% <100.00%> (ø)
...uilder/features/fault_models/composition/smooth.cc	97.29% <100.00%> (+0.23%)	⬆️
... and 24 more

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[github-actions]

Benchmark	Main	Feature	Difference (99.9% CI)
Slab interpolation simple none	1.419 ± 0.009 (s=321)	1.423 ± 0.010 (s=315)	+0.1% .. +0.5%
Slab interpolation curved simple none	1.200 ± 0.005 (s=361)	1.203 ± 0.003 (s=391)	+0.1% .. +0.3%
Spherical slab interpolation simple none	1.572 ± 0.011 (s=306)	1.568 ± 0.004 (s=270)	-0.4% .. -0.1%
Slab interpolation simple curved CMS	1.377 ± 0.003 (s=326)	1.376 ± 0.003 (s=330)	-0.2% .. -0.1%
Spherical slab interpolation simple CMS	2.273 ± 0.012 (s=213)	2.273 ± 0.006 (s=185)	-0.2% .. +0.1%
Spherical fault interpolation simple none	1.596 ± 0.010 (s=266)	1.593 ± 0.003 (s=301)	-0.4% .. -0.1%
Cartesian min max surface	3.076 ± 0.017 (s=143)	3.048 ± 0.019 (s=153)	-1.1% .. -0.7%
Spherical min max surface	9.328 ± 0.017 (s=55)	9.312 ± 0.019 (s=44)	-0.3% .. -0.0%