Move test_eval config values into configs

[OliviaLynn]

• For Code re-org: unify the train scripts #17
• Moved config values out of any_test_eval_model.py into config files (of which there are now 3 versions: HSC, DC2, DC2_redshift).
• Reshuffled some of the code into functions for readability.
• Have no ttouched the config values in any_test_run_tranformers.py
  • My perception is we might split the configs used here into train_head configs vs train_all configs to deal with the last remaining config values--but, I'm just unsure enough about what would be most useful that I'm leaving it be.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Comparison is base (95146b3) 10.85% compared to head (eeff466) 10.85%.
Report is 1 commits behind head on main.

Additional details and impacted files

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  Coverage   10.85%   10.85%           
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  Files          25       25           
  Lines        3877     3877           
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  Hits          421      421           
  Misses       3456     3456           

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[drewoldag]

I think you could also do something like this here: cfg.update(cfg.get("MISC", dict())). But what you have is more explicit, so probably best to keep it as is.

[drewoldag]

This all looks pretty reasonable to me. I left one comment that is just a "you could do it this way too" - feel free to ignore it :)