Build an EIA plant part to generator association table

[cmgosnell]

Tasks

Beta Give feedback

1. check to see if there is any existing tooling to help with this
2. build ta table with record_id_eia from the ppe and the record_id_eia_generator (also from the ppe)
3. add helpful asset checks
4. add db schema
5. (sneak in a bunch of little spelling fixes)
6. Add release notes