Abstar

* 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

bugfixes

define dtype for select tabular fields prior to parquet conversion

Fix tabular output headers

update broker to use RabbitMQ instead of Redis

Add AIRR output format and parquet output option