create and get events needs to opt in to auth

[grounded042]

We need to take the auth and add it to creating an event.

• the route POST /events needs to opt in to auth so user context can be used
• the route GET /events needs to opt in to auth so user context can be used
• the event controllers GetEvents and CreateEvent need to be updated to use user context as well as all functions below
  • when request is made and a user does not have access to an event, respond with 404 since we don't want to use a 403 that will alert someone that that id does indeed exist
• in order to support the user context, we need to have a SQL table EventAdmins with the data
  • event_admin_id
  • fk_user_id - foreign key of the user this admin record relates to
  • fk_event_id - foreign key of the event this admin record relates to
  • created_at
  • updated_at

[grounded042]

see f6e50a5845dfb7274c890edb0be1b6dc64f382fd for contributions to this