chore(types): fix type errors add version information

[deveaud-m]

In preparation for the integration of v2 endpoints.

[codecov]

Codecov Report

❌ Patch coverage is 89.09091% with 6 lines in your changes missing coverage. Please review.
✅ Project coverage is 92.07%. Comparing base (f4093fd) to head (d0b6f29).
⚠️ Report is 10 commits behind head on main.

Files with missing lines	Patch %	Lines
fossology/obj.py	0.00%	4 Missing ⚠️
fossology/foss_cli.py	33.33%	2 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #162      +/-   ##
==========================================
- Coverage   92.26%   92.07%   -0.19%     
==========================================
  Files          15       15              
  Lines        1771     1780       +9     
==========================================
+ Hits         1634     1639       +5     
- Misses        137      141       +4     

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[deveaud-m]

This PR introduces mostly type hints changes which do not affect functionality.

The only functionality change concerns the API version now documented in the main Fossology object to start support for v2.