Abstar

fix bug when building AIRR-formatted output

fix a bug in the abstar API when running with just an input file and not a list of Sequence objects.

* fixed bugs in the doc building process
* updated the ``humouse`` germline database to remove a typo in the species name

* updated the AIRR-C compatible output option to be more complete (format specification can be found [here](https://docs.airr-community.org/en/latest/datarep/rearrangements.html))
* updated ``abstar.run()`` to enable multi-threaded processing when passing ``Sequence`` objects as input

bugfixes

* add the ability for species information to be incorporated into gene names when creating germline databases (helpful for multi-species databases, such as those used for humanized mouse models)
* update make_abstar_germline_db to optionally parse species info from gapped IMGT input files and incorporate into the gene names
* replace the vrc01mouse germline database (which contained human IGHV1-2*02 along with all other mouse variable germline genes) with a new humouse database which includes all mouse and human germline genes