feat: decompression for cuSPARSE matrices

[gdalle]

This is a prototype of what GPU-friendly direct decompression could look like with CUDA.

• Implement result creation and decompression for major cuSPARSE matrix types:
  • CuSparseMatrixCSC
  • CuSparseMatrixCSR
• Add tests
• Add docs => where do we document this behavior?
• Find a way to run CI with CUDA

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 100.00%. Comparing base (f7acc3f) to head (5d9e198).
Report is 1 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff            @@
##              main      #253   +/-   ##
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  Coverage   100.00%   100.00%           
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  Files           16        17    +1     
  Lines         1844      1939   +95     
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+ Hits          1844      1939   +95     

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[amontoison]

I will do a new pass before the end of the week.