[Feature] Add all schemas to graphql

[ClayMav]

• [x] Remove Query query
• [x] Create subcollection for userworkouts
• [x] Add required elements where needed
• [x] Add sign up date and expire date to gym schema
• [x] Add subcollection for workout exercises to workout

[25cent9]

Done.

[ClayMav]

Add a string address field to gyms, as well as a smartness percent, and I would love to get the ids as well for all queries