tdb/niid_upload: Add "(bvr" to serum strain match
tdb/niid_upload: Add "(bvr" to serum strain match

Allows parser to recognize "(BVR)" as an indication of a serum strain
when the other matching patterns are not present in the serum name.

blab/nextstrain-db,nextstrain/fauna,blab/nextstrain-db,nextstrain/fauna