Data update 2: Star Catalog Biases

[tristandijkstra]

This PR implements star catalog debiasing as presented in "Star catalog position and proper motion corrections in asteroid astrometry II: The Gaia era" by Eggl et al..

• Functions have been generated to read and compute bias files composed for the paper above.
• These functions are then implemented into the existing BatchMPC functionality and an option to enable debiasing is enabled by default.
• The documentation for BatchMPC has been updated.
• Tests have been created to check debias functionality, the new functions have 94% coverage.

This update requires some prerequisite changes elsewhere:

• The bias file has been added to Tudat resources in Add star catalog biases tudat-resources#6 and must be merged.
• MPC builds upon astroquery's MPC functionality, which previously did not include a star catalog column. A PR to add this has been added here: MPC: Add star catalog column astropy/astroquery#2957
• Once merged, the astroquery dependency should be changed in requirements.txt, switching to a pip release.