Start symmetric decompression

[gdalle]

Compat

• Bump version to 0.3.2

Source

• Make a new file matrices.jl for respectful_similar, same_sparsity_pattern
• Create matrix_versions(A) which lists dense and sparse versions of A, with or without Transpose/Adjoint/Symmetric
• Simplify checks with color_groups and add more precise warnings
• Implement decompress_symmetric naively for dense matrices

Tests

• Test everywhere on the cartesian product of matrix_versions(A) and matrix_versions(S)

[codecov]

Codecov Report

Attention: Patch coverage is 97.80220% with 2 lines in your changes are missing coverage. Please review.

Project coverage is 98.52%. Comparing base (2c5d35c) to head (804802a).

Files	Patch %	Lines
src/decompression.jl	92.59%	2 Missing ⚠️

Additional details and impacted files

@@             Coverage Diff             @@
##              main      #10      +/-   ##
===========================================
- Coverage   100.00%   98.52%   -1.48%     
===========================================
  Files            7        9       +2     
  Lines          229      271      +42     
===========================================
+ Hits           229      267      +38     
- Misses           0        4       +4     

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