Add pyproject.toml.

[wwood]

Addresses the warning described at pypa/pip#11457

I think this is just a simple hoop to jump through? The warning I got when running pip install -e . went away, and aviary seems to work run afterwards.

Installing collected packages: aviary-genome
  DEPRECATION: Legacy editable install of aviary-genome==0.9.2 from file:///mnt/hpccs01/home/woodcrob/git/aviary (setup.py develop) is deprecated. pip 25.0 will enforce this behaviour change. A possible replacement is to add a pyproject.toml or enable --use-pep517, and use setuptools >= 64. If the resulting installation is not behaving as expected, try using --config-settings editable_mode=compat. Please consult the setuptools documentation for more information. Discussion can be found at https://github.com/pypa/pip/issues/11457

Not sure I quite understand everything that is going on here though..

[wwood]

This is set to merge into main - maybe needs cherry pick onto dev?