code cleaning (by script ./utils/scripts/clean_listings_specfem.py) and fixes compiler warnings; adding hdf5 github actions compilation test

[danielpeter]

No description provided.

[codecov]

Codecov Report

Attention: Patch coverage is 0.83333% with 238 lines in your changes missing coverage. Please review.

Project coverage is 35.37%. Comparing base (1a978a5) to head (96ab351).
Report is 5 commits behind head on devel.

Files with missing lines	Patch %	Lines
src/specfem3D/read_arrays_solver_hdf5.F90	0.00%	82 Missing ⚠️
src/specfem3D/write_movie_volume_hdf5.F90	0.00%	76 Missing ⚠️
src/specfem3D/save_kernels_hdf5.F90	0.00%	30 Missing ⚠️
src/meshfem3D/save_arrays_solver_hdf5.F90	0.00%	25 Missing ⚠️
src/specfem3D/save_forward_arrays_hdf5.F90	0.00%	13 Missing ⚠️
src/specfem3D/write_output_HDF5.F90	0.00%	11 Missing ⚠️
src/specfem3D/read_forward_arrays_hdf5.F90	0.00%	1 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##            devel     #854      +/-   ##
==========================================
+ Coverage   33.23%   35.37%   +2.14%     
==========================================
  Files         294      294              
  Lines       67976    68277     +301     
==========================================
+ Hits        22589    24151    +1562     
+ Misses      45387    44126    -1261     

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