SERVER - User Login

[bpanicker13]

Create RESTful Endpoints to allow a user to login, register, and forgot password.

Acceptance Criteria:

• create a POST route to /login
• create a POST route to /register
• create a POST route to /forgotPassword
• All routes should do validation on the appropriate parameters and gives back a standard response signature.
• Update the API Doc in the wiki for each created route.