Database-First Migrations

https://gqc.atlassian.net/browse/CHAMA-45

I ran the command and got a list of models out. I think this is a decent first step for building models from an existing database. However, we get far too many tables for what we need. I think our best bet for building models for projects such as these is something like the following:

• Create an empty database.
• Use DBeaver to import tables into the DB.
• Use django inspectdb command to get all tables.
• Remove all models/tables EXCEPT for those corresponding to our imported layers (shape files, geojson, etc.)
• Manually edit these shape models to be usable models
• Modify meta data (managed = True)
• Tweak attribute names to conform to Python/Django conventions. LEAVE COLUMN AND TABLE NAMES ALONE
• Do migrations… not sure from here on out…