Add hats outputs to lsdb feedstock

[delucchi-cmu]

See conda-forge/lsdb-feedstock#82

The three packages, hats, lsdb, and hats-import are all maintained by my team, and currently via three separate feedstocks. lsdb and hats-import depend on the hats package. All three packages are released (nearly) simultaneously via github and pypi, with the same release tag number (by convention).

The three separate conda-forge feedstocks has proven to be an operational headache for our team, and we'd like to manage all three builds via one feedstock and build cycle.

Checklist:

• I want to add a package output to a feedstock:
  • Pinged the relevant feedstock team(s)
  • Added a small description of why the output is being added.

[delucchi-cmu]

@conda-forge/core ready for review

[h-vetinari]

The three separate conda-forge feedstocks has proven to be an operational headache for our team, and we'd like to manage all three builds via one feedstock and build cycle.

Xref conda-forge/lsdb-feedstock#83

once you've merged that PR, please open a PR here to archive the old feedstocks