Cleanup pyproject.toml

[ismael-mendoza]

In pyproject.toml, change package options to only include python files, not models or config files.

Also added other useful information in the pyproject.toml

Along the way I'm deleting the homogenization case study, which we can revive later if someone ones to move that project forward. But since there are no plans to do so from me or others in the immediate future, I'm deleting those files from the repo for now.

First step towards allowing pip installation of BLISS

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[codecov]

Codecov Report

Merging #704 (cc9cca3) into master (56263b4) will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff           @@
##           master     #704   +/-   ##
=======================================
  Coverage   87.06%   87.06%           
=======================================
  Files          26       26           
  Lines        3689     3689           
=======================================
  Hits         3212     3212           
  Misses        477      477           

Flag	Coverage Δ
unittests	87.06% <ø> (ø)

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Impacted Files	Coverage Δ
bliss/models/detection_encoder.py	95.95% <ø> (ø)
bliss/models/galaxy_encoder.py	95.34% <ø> (ø)

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