Fix stdout mushing with analysis command

[richardjgowers]

make openfe_analysis hold a group of different commands

make the RFE_analysis command require an output location

[codecov]

Codecov Report

Attention: 3 lines in your changes are missing coverage. Please review.

Comparison is base (b4a4ec8) 60.06% compared to head (75d8af5) 60.06%.
Report is 1 commits behind head on main.

Files	Patch %	Lines
src/openfe_analysis/cli.py	62.50%	3 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main      #27      +/-   ##
==========================================
- Coverage   60.06%   60.06%   -0.01%     
==========================================
  Files           6        6              
  Lines         293      298       +5     
==========================================
+ Hits          176      179       +3     
- Misses        117      119       +2     

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