Embracing Poetry: includes version + deps bump

[JackUrb]

Overview

Preparing for the release of 1.0.2, this PR moves us to fully adopt poetry as our python package manager. This is handled by moving all of the details that used to be in setup.py, requirements.txt, and MANIFEST.in into the pyproject.toml file. We're adapting this as we needed editable installations with pip install -e . as described in python-poetry/poetry#34, and following python-poetry/poetry-core#182 we could actually have it. A year late, but eventually is better than never!

After this it should be easier to modify and manage packages, and to deal with ParlAI dependencies (perhaps we can push them to adopt as well?).

Should resolve #818 and #768.

Note - some of the pyproject.toml file is still commented out. This is because there's some nicer syntax coming out in poetry 1.2 that I'd like to adopt, but I can't get tests to work using it just yet so I've left it commented out.

[codecov-commenter]

Codecov Report

Merging #779 (5bf5ae1) into main (dc8f72d) will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff           @@
##             main     #779   +/-   ##
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  Coverage   64.57%   64.57%           
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  Files         107      107           
  Lines        9259     9259           
=======================================
  Hits         5979     5979           
  Misses       3280     3280           

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[pringshia]

Seems like there are a bunch of test failures - possible that the dependencies in pyproject.toml aren't up to date?

[pringshia]

Will this mean pip install -e won't work anymore btw? In that case we should update our Github Actions tests and Dockerfiles to use poetry install instead of pip install -e.

https://github.com/facebookresearch/Mephisto/search?q=pip+install

[JackUrb]

Debugging the tests, but pip install -e . still works perfectly :)

[JackUrb]

Alright solved the issue by commenting out the fancy poetry 1.2 syntax, will return to that when the release is finally cut.