initial commit of production_credits engine
add root controller for engine
Add initial schema for productions data
use rspec, generate production_credits models/tests
fix production_credits schema to use namespaced tables
install and configure rails admin to manage production_credits data [#72903824]:
add has_many associations to production_credits models
seed in some prodution credit data
fix typo in migration
deassociate credits with works, performances, and productions
define name methods for models so admin shows usable lables #[80670562]
Add credit type enum to credit
Add category enum to Roles to provide static list in UI
fix credit type options
seed production data
Associate productions and performances with a venue [#80673702]
rename application module
Merge branch 'production_credits' of github.com:OregonShakespeareFestival/osf_digital_archives into production_credits

nto a topic branch.
change work year type to date
add model validations