Refactor attributes code

[BradyAJohnston]

Refactors the attribute code to better abstract it and make more generalised.

Movement towards having the numpy / blender interface being a separate module that can be used in other projects.

[codecov]

Codecov Report

Attention: Patch coverage is 85.38206% with 44 lines in your changes missing coverage. Please review.

Project coverage is 73.77%. Comparing base (bb35110) to head (e30e248).
Report is 28 commits behind head on main.

Files with missing lines	Patch %	Lines
molecularnodes/blender/databpy/attribute.py	83.58%	22 Missing ⚠️
molecularnodes/blender/databpy/object.py	80.23%	17 Missing ⚠️
molecularnodes/entities/entity.py	75.00%	2 Missing ⚠️
molecularnodes/entities/molecule/molecule.py	85.71%	2 Missing ⚠️
molecularnodes/entities/trajectory/trajectory.py	85.71%	1 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #641      +/-   ##
==========================================
+ Coverage   71.73%   73.77%   +2.04%     
==========================================
  Files          50       52       +2     
  Lines        4143     4267     +124     
==========================================
+ Hits         2972     3148     +176     
+ Misses       1171     1119      -52     

☔ View full report in Codecov by Sentry.
📢 Have feedback on the report? Share it here.