Update for branch convergence

[vonHartz]

For some additional details see discussion below.

Updates:

• some autoformatting
• added some mujoco-envs (walker2d, humanoid)
• logging ray.init-kwargs
• external ray init option
• wandb logging option
• patch for missing seq_len key: using default of 1
• added generic env_wrapper
• switched from dill to cloudpickle for saving ray analysis
• added kwargs for ray init to arg parse
• also returning stats_file name now
• docs building, including doc of CLI options

[codecov]

Codecov Report

Merging #18 (2fb747d) into master (bfe2ea3) will decrease coverage by 0.32%.
The diff coverage is n/a.

@@            Coverage Diff             @@
##           master      #18      +/-   ##
==========================================
- Coverage   72.66%   72.33%   -0.33%     
==========================================
  Files          30       30              
  Lines        3698     3745      +47     
==========================================
+ Hits         2687     2709      +22     
- Misses       1011     1036      +25     

Flag	Coverage Δ
unittests	72.33% <ø> (-0.33%)	⬇️

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Impacted Files	Coverage Δ
mdp_playground/analysis/analysis.py	26.94% <ø> (ø)
...dp_playground/config_processor/config_processor.py	45.63% <ø> (-1.05%)	⬇️
mdp_playground/scripts/run_experiments.py	85.22% <ø> (-5.69%)	⬇️
setup.py	0.00% <ø> (ø)

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[vonHartz]

Some thoughts.

[vonHartz]

Updated code selection.

[vonHartz]

All requested changes made. Ready to go!