Add TotalRewardPerEpisodeLastN hook

[jeremiahpslewis]

This pull request adds the TotalRewardPerEpisodeLastN hook to the project. The hook keeps track of the total reward per episode for the last max_steps episodes. It includes the necessary code changes and tests.

[codecov]

Codecov Report

Attention: Patch coverage is 85.71429% with 1 lines in your changes are missing coverage. Please review.

Project coverage is 31.73%. Comparing base (e61836a) to head (201dc89).

Additional details and impacted files

@@             Coverage Diff             @@
##             main    #1053       +/-   ##
===========================================
- Coverage   57.50%   31.73%   -25.78%     
===========================================
  Files          71       71               
  Lines        2751     2729       -22     
===========================================
- Hits         1582      866      -716     
- Misses       1169     1863      +694     

Files	Coverage Δ
...ementLearningFarm/src/ReinforcementLearningFarm.jl	100.00% <ø> (ø)
...Farm/src/hooks/total_reward_per_last_n_episodes.jl	85.71% <85.71%> (ø)

... and 21 files with indirect coverage changes