Added docs package requirements to setup.py

[marcomangano]

Purpose

As per title, now if the user wants to build the documentation locally, they can set all the dependencies using pip install .[docs]

Expected time until merged

as soon as the tests pass?

Type of change

• Bugfix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (non-backwards-compatible fix or feature)
• Code style update (formatting, renaming)
• Refactoring (no functional changes, no API changes)
• Documentation update
• Maintenance update
• Other (please describe)

Checklist

• I have run flake8 and black to make sure the code adheres to PEP-8 and is consistently formatted
• I have run unit and regression tests which pass locally with my changes
• I have added new tests that prove my fix is effective or that my feature works
• I have added necessary documentation

[codecov]

Codecov Report

Merging #290 (6301b23) into main (c55b4ea) will not change coverage.
The diff coverage is 100.00%.

@@           Coverage Diff           @@
##             main     #290   +/-   ##
=======================================
  Coverage   84.16%   84.16%           
=======================================
  Files          22       22           
  Lines        3315     3315           
=======================================
  Hits         2790     2790           
  Misses        525      525           

Impacted Files	Coverage Δ
pyoptsparse/__init__.py	100.00% <100.00%> (ø)

📣 Codecov can now indicate which changes are the most critical in Pull Requests. Learn more

[sseraj]

Should we also prune requirements.txt (here and in other repos)? numpydoc and sphinxcontrib-bibtex are both already required by sphinx_mdolab_theme.

[ewu63]

Yes that'd be a good idea. I started adding dependencies to the mdolab theme but haven't gotten around to pruning the repos.

[ewu63]

I think we should also bump the patch version here.