Add numerical support of other real types (linearized_euler)

[huiyuxie]

Continue #1909.

Tasks:

• linearized_euler 1d, 2d, 3d
• unit tests for above

[github-actions]

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[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 96.28%. Comparing base (0cc13dd) to head (fc39274).
Report is 1 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #2002      +/-   ##
==========================================
+ Coverage   96.06%   96.28%   +0.21%     
==========================================
  Files         462      462              
  Lines       37076    37076              
==========================================
+ Hits        35616    35695      +79     
+ Misses       1460     1381      -79     

Flag	Coverage Δ
unittests	96.28% <100.00%> (+0.21%)	⬆️

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[ranocha]

Thanks!