Experiment Local and Remote Unification

[cpritcha]

• should be able to create experiment locally (with SQLite connection info) or remotely (with a condor submit file and Postgres connection info)
• querying an experiment should work the same locally or remotely (the experiment class generates the appropriate queries with dbplyr and submits them to the db)
• need to be able to create condor submit file from experiment (will use condor submit template)