WIP: RL baselines as policy support

[KornbergFresnel]

Add more RL algorithms as baselines

[codecov]

Codecov Report

Attention: 90 lines in your changes are missing coverage. Please review.

Comparison is base (79562dd) 89.99% compared to head (e736658) 86.76%.
Report is 3 commits behind head on main.

❗ Current head e736658 differs from pull request most recent head 030407c. Consider uploading reports for the commit 030407c to get more accurate results

Files	Patch %	Lines
malib/common/vtrace.py	0.00%	46 Missing ⚠️
malib/rl/ppo/trainer.py	14.00%	43 Missing ⚠️
malib/rl/ppo/policy.py	87.50%	1 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main      #60      +/-   ##
==========================================
- Coverage   89.99%   86.76%   -3.23%     
==========================================
  Files          36       40       +4     
  Lines        2338     2441     +103     
==========================================
+ Hits         2104     2118      +14     
- Misses        234      323      +89     

☔ View full report in Codecov by Sentry.
📢 Have feedback on the report? Share it here.