Add Florida parties to fixture

Add parties encountered in Florida's raw results to the parties
fixture.

This opened up a number of questions about differentiating state
and national parties and whether to use state, FEC or our own
curated list of abbreviations.  I added a state field to indicate
which parties are state-specific, and to possibly differentiate
between same-named state-level parties.

I added additional abbreviation and name fields to the
``Party`` model to make the state and FEC abbreviations clear in
case a party in the state results was incorrectly mapped to an
FEC party.

I updated the Maryland transforms to use new Party abbreviations.
I'll likely have to write transforms to map some state-level
parties to canonical parties.

Addresses https://github.com/openelections/core/issues/91