Complex Sparse CSC

[michel2323]

@amontoison Sorry, I also worked on it yesterday 🙂. This support Complex and throws errors for the trsm etc.

[github-actions]

Your PR no longer requires formatting changes. Thank you for your contribution!

[michel2323]

For the complex cases, I can also post a warning that performance is degraded due to additional allocation. I think it might still be valuable in some cases.

[codecov]

Codecov Report

❌ Patch coverage is 57.64706% with 36 lines in your changes missing coverage. Please review.
✅ Project coverage is 79.37%. Comparing base (b79926a) to head (1066b17).
⚠️ Report is 2 commits behind head on master.

Files with missing lines	Patch %	Lines
lib/mkl/wrappers_sparse.jl	57.64%	36 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##           master     #528      +/-   ##
==========================================
- Coverage   80.01%   79.37%   -0.64%     
==========================================
  Files          45       45              
  Lines        2887     2972      +85     
==========================================
+ Hits         2310     2359      +49     
- Misses        577      613      +36     

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[amontoison]

@michel2323 Is it fine for you to merge my PR before and then rebase your PR on top of it?
It will be easier to review for me.