Create the registration phase: step #1

[gamcoh]

• [ ] [front] Email, full name, pass, pass confirmation, sex
• [ ] [api] check if the email already exists
  • [ ] [front] redirect to login with notification/alert
• [ ] [api] check if the form data are correct
• [ ] [api] log in the attempt even if the info are not correct
  • [ ] [db] create a new database
• [ ] [api] confirm email address by sending a code
  • [ ] use a email service