Initial development

To get this ready for release, we need the following core features:

• Membership Entity (Fieldable separately from users)
• Attach X number of users to a membership
• Configurable limits
• When membership expires all users expire (Configurable)
• When membership is reactivated all users are reactivated (Configurable)
• When membership is deleted (Configurable default)
  
  • All users are deleted
  • All users are deactivated
  • All users are kept