[FEATURE] Allow YAML maps and lists in overrides, convert to script format

[jmbannon]

No description provided.

[codecov]

Codecov Report

Attention: Patch coverage is 95.94595% with 3 lines in your changes are missing coverage. Please review.

Project coverage is 96.76%. Comparing base (64d3082) to head (2fc7236).

Files	Patch %	Lines
src/ytdl_sub/utils/script.py	96.55%	2 Missing ⚠️
src/ytdl_sub/script/parser.py	50.00%	1 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##           master     #956      +/-   ##
==========================================
- Coverage   96.77%   96.76%   -0.01%     
==========================================
  Files         115      115              
  Lines        7381     7451      +70     
==========================================
+ Hits         7143     7210      +67     
- Misses        238      241       +3     

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