ECDSA + EdDSA (Ed25519, Ed448) algorithms implementation

[ixunio]

• ✨ ECDSA algorithms implementation
  • ES256
  • ES256K
  • ES384
  • ES512
• ✨ EdDSA algorithms implementation
  • Ed25519
  • Ed448
• 💚 Testing CI now runs with cryptography uninstalled and installed
• ✅ 100% test coverage on algorithms and keys
• ✅ 🎨 tests now creates once and only once private keys to speed up run time

[codecov]

Codecov Report

❌ Patch coverage is 99.51691% with 1 line in your changes missing coverage. Please review.
✅ Project coverage is 97.80%. Comparing base (40c7306) to head (8ace8bd).
⚠️ Report is 3 commits behind head on main.

Files with missing lines	Patch %	Lines
superjwt/algorithms.py	99.31%	0 Missing and 1 partial ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main      #71      +/-   ##
==========================================
+ Coverage   97.19%   97.80%   +0.61%     
==========================================
  Files           9        9              
  Lines         926     1047     +121     
  Branches      121      129       +8     
==========================================
+ Hits          900     1024     +124     
  Misses         19       19              
+ Partials        7        4       -3     

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