WIP: Resolve missing PSY docstrings

[kdayday]

Finally tackle the last 400+ missing docstrings

• Add some omitted PSY pages to public.md

[codecov]

Codecov Report

Attention: Patch coverage is 33.33333% with 2 lines in your changes missing coverage. Please review.

Project coverage is 84.62%. Comparing base (3ce7468) to head (ecab80f).
Report is 5 commits behind head on main.

Files with missing lines	Patch %	Lines
src/models/OuterControl.jl	33.33%	2 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #1188      +/-   ##
==========================================
- Coverage   84.64%   84.62%   -0.02%     
==========================================
  Files         180      180              
  Lines        8256     8259       +3     
==========================================
+ Hits         6988     6989       +1     
- Misses       1268     1270       +2     

Flag	Coverage Δ
unittests	84.62% <33.33%> (-0.02%)	⬇️

Flags with carried forward coverage won't be shown. Click here to find out more.

Files with missing lines	Coverage Δ
src/models/OuterControl.jl	64.70% <33.33%> (-6.73%)	⬇️