Add time series gridding

[tgross03]

• Add GridDataSeries class
• Add plotting.animations submodule
• Update docstrings of plotting and core modules

[codecov-commenter]

Codecov Report

❌ Patch coverage is 17.84703% with 290 lines in your changes missing coverage. Please review.
✅ Project coverage is 26.13%. Comparing base (61150da) to head (2844845).
⚠️ Report is 6 commits behind head on main.
✅ All tests successful. No failed tests found.

Files with missing lines	Patch %	Lines
src/pyvisgrid/plotting/animations.py	10.20%	220 Missing ⚠️
src/pyvisgrid/core/gridder.py	43.93%	37 Missing ⚠️
src/pyvisgrid/plotting/plotting.py	17.50%	33 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main      #50      +/-   ##
==========================================
- Coverage   35.53%   26.13%   -9.41%     
==========================================
  Files           8        9       +1     
  Lines         408      727     +319     
==========================================
+ Hits          145      190      +45     
- Misses        263      537     +274     

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