Implement a new CheckBox which when selected creates a Provider Account for the user being created in user.form

To create users who are providers, one has to manually create a user and then manually use the provider management page to add the user to Provider table.

Suggested change is, on User Management Page when adding new user, an option should be added to add user to provider table; Create a new record in provider table with that user's person_id and system_id (as identifier)