[WIP] Development of v0.2.2 (part 1)

[omardrwch]

Bug fixes:

• Fixed bug in FiniteMDP.sample(): terminal state was being checked with self.state instead of given state

Features:

• Option to use 'fork' or 'spawn' in AgentManager
• AgentManager output_dir now has a timestamp and a short ID by default.

TODO:

• Utils for checkpoint
• Gridworld from string layout

[codecov]

Codecov Report

Merging #83 (25a12f8) into main (2ac9baa) will decrease coverage by 0.04%.
The diff coverage is 100.00%.

❗ Current head 25a12f8 differs from pull request most recent head 2916253. Consider uploading reports for the commit 2916253 to get more accurate results

@@            Coverage Diff             @@
##             main      #83      +/-   ##
==========================================
- Coverage   78.71%   78.66%   -0.05%     
==========================================
  Files         159      159              
  Lines        8438     8438              
==========================================
- Hits         6642     6638       -4     
- Misses       1796     1800       +4     

Impacted Files	Coverage Δ
setup.py	0.00% <ø> (ø)
rlberry/envs/finite/finite_mdp.py	100.00% <100.00%> (ø)
rlberry/exploration_tools/torch/rnd.py	70.19% <0.00%> (-2.89%)	⬇️
rlberry/exploration_tools/typing.py	90.69% <0.00%> (-2.33%)	⬇️

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