[WIP] Handle NAGLCharges

[j-wags]

Description

See openforcefield/openff-toolkit#2048 for corresponding changes in OpenFF Toolkit
Provide a brief description of the PR's purpose here.

Checklist

• Add tests
• Lint
• Update docstrings

[codecov]

Codecov Report

Attention: Patch coverage is 91.66667% with 1 line in your changes missing coverage. Please review.

Project coverage is 93.60%. Comparing base (018e25d) to head (482128c).

Files with missing lines	Patch %	Lines
openff/interchange/smirnoff/_nonbonded.py	90.90%	1 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #1206      +/-   ##
==========================================
- Coverage   93.60%   93.60%   -0.01%     
==========================================
  Files          70       70              
  Lines        6039     6047       +8     
==========================================
+ Hits         5653     5660       +7     
- Misses        386      387       +1     

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