Individual user can signup + login

[rrundle]

• Individual Signup
  • Add signup fields on main info page
  • Let user search for org
  • Add invite button if org not registered
    • Present page that asks for the info needed for mailgun
    • Add mailgun integration to invite org
  • Add username + password fields
  • Use bcrypt to hash + salt on signup
  • Authenticate user and set session token
  • Request is sent to org for approving this individual
  • Upon approval unlock individual account and send them email to login
  • Retrieve user details on login
  • Send to Individual dashboard on login