Taal 3D

[ranocha]

I've ported most 3D functionality to Taal and set up some first tests. I suggest to merge this PR first and port the remaining examples later - which could also be done by other @trixi-framework/developers.

[codecov]

Codecov Report

Merging #255 into dev will decrease coverage by 1.27%.
The diff coverage is 67.09%.

@@            Coverage Diff             @@
##              dev     #255      +/-   ##
==========================================
- Coverage   89.41%   88.14%   -1.28%     
==========================================
  Files          60       66       +6     
  Lines       10585    12601    +2016     
==========================================
+ Hits         9465    11107    +1642     
- Misses       1120     1494     +374     

Impacted Files	Coverage Δ
src/callbacks/amr.jl	87.50% <ø> (ø)
src/callbacks/amr_dg1d.jl	95.04% <ø> (ø)
src/callbacks/analysis.jl	83.41% <ø> (ø)
src/callbacks/steady_state.jl	68.42% <ø> (ø)
src/callbacks/stepsize.jl	85.29% <ø> (ø)
src/equations/2d/compressible_euler.jl	91.80% <ø> (ø)
src/solvers/dg/dg.jl	81.91% <ø> (ø)
src/solvers/dg/indicators_1d.jl	65.16% <0.00%> (ø)
src/solvers/dg/indicators_2d.jl	66.34% <0.00%> (ø)
src/solvers/dg/interpolation.jl	75.26% <0.00%> (-4.28%)	⬇️
... and 32 more

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[sloede]

LGTM. I have to be honest - I only really looked at the files with changes, but did not check in detail the contents of the new files, e.g., indicators_3d, dg_3d etc. Just reading through thousands of lines is probably not gonna catch the errors, so I think I'd better use the time to make sure that in the end the test results match between Taal and Taam.

If you disagree, then I'll have to do a more thorough review later on, but it is going to take me a while...

[ranocha]

Just reading through thousands of lines is probably not gonna catch the errors, so I think I'd better use the time to make sure that in the end the test results match between Taal and Taam.

That's perfectly fine and also what I had in mind when creating this PR - create a basis for discussing Taal further and build everything on top of your nice work comparing Taal and Taam 👍