Add numerical support of other real types (`ideal`)

[huiyuxie]

Continue #1909.

Tasks:

• [x] ideal_glm_mhd 1d, 2d, 3d
• [x] unit tests for above

[github-actions[bot]]

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[codecov[bot]]

Codecov Report

All modified and coverable lines are covered by tests :white_check_mark:

Project coverage is 96.19%. Comparing base (179854e) to head (19f22ec).

Additional details and impacted files

```diff @@ Coverage Diff @@ ## main #1984 +/- ## ========================================== + Coverage 96.16% 96.19% +0.03% ========================================== Files 460 460 Lines 36984 36993 +9 ========================================== + Hits 35564 35584 +20 + Misses 1420 1409 -11 ``` | [Flag](https://app.codecov.io/gh/trixi-framework/Trixi.jl/pull/1984/flags?src=pr&el=flags&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=trixi-framework) | Coverage Δ | | |---|---|---| | [unittests](https://app.codecov.io/gh/trixi-framework/Trixi.jl/pull/1984/flags?src=pr&el=flag&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=trixi-framework) | `96.19% <100.00%> (+0.03%)` | :arrow_up: | Flags with carried forward coverage won't be shown. [Click here](https://docs.codecov.io/docs/carryforward-flags?utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=trixi-framework#carryforward-flags-in-the-pull-request-comment) to find out more.

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[huiyuxie]

Ready for final review and merge @ranocha ^^

[huiyuxie]

Thanks! Please give me some time to look into those errors.

[huiyuxie]

Wow looks like it is fixed now ^^ that's amazing! Please check my comments above since I don't know why those integers cannot be Float32 - for me, they all passed the type tests.