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

[huiyuxie]

Continue #1909.

Tasks:

• [x] ideal_glm_mhd_multicomponent 1d, 2d
• [x] inviscid_burgers 1d
• [ ] unit tests for above

[github-actions[bot]]

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[codecov[bot]]

Codecov Report

Attention: Patch coverage is 97.89474% with 4 lines in your changes missing coverage. Please review.

Project coverage is 96.19%. Comparing base (58acd35) to head (23c118a).

Files	Patch %	Lines
src/equations/inviscid_burgers_1d.jl	78.95%	4 Missing :warning:

Additional details and impacted files

```diff @@ Coverage Diff @@ ## main #1988 +/- ## ========================================== - Coverage 96.19% 96.19% -0.00% ========================================== Files 460 460 Lines 36993 37009 +16 ========================================== + Hits 35584 35599 +15 - Misses 1409 1410 +1 ``` | [Flag](https://app.codecov.io/gh/trixi-framework/Trixi.jl/pull/1988/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/1988/flags?src=pr&el=flag&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=trixi-framework) | `96.19% <97.89%> (-<0.01%)` | :arrow_down: | 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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