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 81.68498% with 100 lines in your changes missing coverage. Please review.

Project coverage is 73.89%. Comparing base (bb35110) to head (b5af79a).
Report is 28 commits behind head on main.

Files with missing lines	Patch %	Lines
molecularnodes/blender/bpyd/attribute.py	76.77%	36 Missing ⚠️
molecularnodes/blender/bpyd/object.py	81.10%	24 Missing ⚠️
molecularnodes/blender/bpyd/nodes.py	82.85%	18 Missing ⚠️
molecularnodes/blender/bpyd/collection.py	70.58%	5 Missing ⚠️
molecularnodes/entities/trajectory/trajectory.py	80.00%	5 Missing ⚠️
molecularnodes/blender/nodes.py	69.23%	4 Missing ⚠️
molecularnodes/entities/molecule/molecule.py	85.71%	2 Missing ⚠️
molecularnodes/entities/trajectory/ui.py	0.00%	2 Missing ⚠️
molecularnodes/ui/panel.py	33.33%	2 Missing ⚠️
molecularnodes/blender/utils.py	87.50%	1 Missing ⚠️
... and 1 more

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #641      +/-   ##
==========================================
+ Coverage   71.73%   73.89%   +2.15%     
==========================================
  Files          50       54       +4     
  Lines        4143     4271     +128     
==========================================
+ Hits         2972     3156     +184     
+ Misses       1171     1115      -56     

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