Geocat.f2py

Numpy versioning updated, unpinned from 1.19, now requires 1.20.2 or greater.
Documentation improved.

Release Notes:
- No new functions
- Note: Refer to [GeoCAT-f2py API reference](https://geocat-f2py.readthedocs.io/en/latest/api.html) for detailed information about the existing functions
- Bug with unchunked `xarray.Dataarray` input in functions `linint1`, `linint2`, `linint2pts`, `rcm2points`, `rcm2rgrid`, `rgrid2rcm` is fixed

Developer Notes:
- Several badges for CI and docs statuses are added to `README.md`
- Code coverage reports added
- Automatic CI tests (`ci.yml`) added
- Pre-commit hooks added for yapf and some other checks
- Github actions workflow uploading GeoCAT-f2py to PyPi provided

Release Notes:
- New functions:
- Note: Refer to [GeoCAT-f2py API reference](https://geocat-f2py.readthedocs.io/en/latest/api.html) for detailed information about below functions:
- `dpres_plevel`
- `grid_to_triple`
- `linint2_points `
- `moc_globe_atl`
- `rcm2points`
- `triple_to_grid`

conda-forge integration test