Merging `thesis_gemein_2022` into `TrixiAtmo.jl`

[Arpit-Babbar]

This PR started as an explanation to https://github.com/trixi-framework/TrixiAtmo.jl/issues/1. Now, it adds all the elixirs with respective CI tests from Lucas' thesis.

TODO

• [x] Add tests for elixirs
• [ ] Resolve repetition from Trixi in the process of adding tests. That is, this file https://github.com/trixi-framework/TrixiAtmo.jl/blob/ab_lucas/test/test_trixiatmo.jl is copied from Trixi.jl.
• [x] Are the 1920 allocations expected? (They didn't show up in CI, so we are good)
• [x] Add tests for the remaining 5/7 elixirs

[tristanmontoya]

This is a good start for TrixiAtmo.jl, and should be quite useful. I will have some time to look into the specifics more in the next week, but my first thought is that we should perhaps set up testing/CI (similarly to TrixiShallowWater.jl) before merging this to main.

[github-actions[bot]]

Pull Request Test Coverage Report for Build 9959365955

Details

• 0 of 567 (0.0%) changed or added relevant lines in 1 file are covered.
• No unchanged relevant lines lost coverage.
• Overall coverage decreased (-99.3%) to 0.701%

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Changes Missing Coverage	Covered Lines	Changed/Added Lines	%
src/equations/compressible_moist_euler_2d.jl	0	567	0.0%
<!--	Total:	0	567	0.0%	-->

Totals
Change from base Build 9959098082:	-99.3%
Covered Lines:	4
Relevant Lines:	571

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💛 - Coveralls

[coveralls]

Pull Request Test Coverage Report for Build 9970231868

Details

• 211 of 568 (37.15%) changed or added relevant lines in 1 file are covered.
• No unchanged relevant lines lost coverage.
• Overall coverage decreased (-62.4%) to 37.587%

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Changes Missing Coverage	Covered Lines	Changed/Added Lines	%
src/equations/compressible_moist_euler_2d.jl	211	568	37.15%
<!--	Total:	211	568	37.15%	-->

Totals
Change from base Build 9959098082:	-62.4%
Covered Lines:	215
Relevant Lines:	572

---

💛 - Coveralls

[codecov[bot]]

Codecov Report

Attention: Patch coverage is 73.76761% with 149 lines in your changes missing coverage. Please review.

Project coverage is 50.90%. Comparing base (1c7efd9) to head (5f91de5). Report is 1 commits behind head on main.

Files	Patch %	Lines
src/equations/compressible_moist_euler_2d_lucas.jl	73.76%	149 Missing :warning:

Additional details and impacted files

```diff @@ Coverage Diff @@ ## main #2 +/- ## =========================================== + Coverage 19.34% 50.90% +31.55% =========================================== Files 8 8 Lines 827 827 =========================================== + Hits 160 421 +261 + Misses 667 406 -261 ```

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[benegee]

• Resolve repetition from Trixi in the process of adding tests. That is, this file https://github.com/trixi-framework/TrixiAtmo.jl/blob/ab_lucas/test/test_trixiatmo.jl is copied from Trixi.jl.

At first I though that we could maybe move some parts to TrixiBase.jl, but then I realized that these macro e.g. explicitly include the Trixi. Maybe we should therefore just add our own macros as need be.

[benegee]

• Are the 1920 allocations expected?

Which test case was it?

[ranocha]

It looks good to me, although I am wondering if either of you (@Arpit-Babbar or @benegee) know the reason for the warnings copied below? My tests have always been very simple so I've never run into this.

WARNING: replacing module TrixiAtmoTestModule. WARNING: could not import TestExamples2DMoistEuler.TRIXI_EXAMPLES_DIR into TrixiAtmoTestModule

You define a module with the same name every time in

https://github.com/trixi-framework/TrixiAtmo.jl/blob/1c7efd9be9a80019df8d74bb765ffdccd6a90ba1/test/test_trixiatmo.jl#L28

If you want to get rid of that warning, you could gensym an appropriate name - but I don't think that's necessary right now.