feat: Move signing_alg_from_sign1 into c2pa-crypto

[scouten-adobe]

No description provided.

[codecov]

Codecov Report

Attention: Patch coverage is 39.28571% with 17 lines in your changes missing coverage. Please review.

Project coverage is 80.68%. Comparing base (f8ba3fb) to head (ccc3004).
Report is 1 commits behind head on main.

Files with missing lines	Patch %	Lines
internal/crypto/src/cose/sign1.rs	33.33%	16 Missing ⚠️
sdk/src/error.rs	0.00%	1 Missing ⚠️

Additional details and impacted files

@@           Coverage Diff           @@
##             main     #795   +/-   ##
=======================================
  Coverage   80.68%   80.68%           
=======================================
  Files         117      117           
  Lines       31046    31044    -2     
=======================================
- Hits        25048    25047    -1     
+ Misses       5998     5997    -1     

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