AdvisorGenie OAuth Server (New Schema with public_id)

Example usage:
/linkedin?firm_id=YOUR_FIRM_PUBLIC_ID&user_app_id=45
/facebook?firm_id=YOUR_FIRM_PUBLIC_ID&user_app_id=45
/twitter?firm_id=YOUR_FIRM_PUBLIC_ID&user_app_id=45

Also: /firm_users?firm_id=YOUR_FIRM_PUBLIC_ID