[task] integrate login mechanish to current project

The login mechanism is described in the "login" project. https://gitlab.com/codeigniterpower/codeigniter-login

We have two authentication layers, one against the imap (mail) that allows the user to start and another against a table (database) that indicates if the user is allowed actions.

In short, the mail/imap layer allows login and the database/table layer allows actions

  1. integrate the 6 necessary files keeping the names that provide the login mechanism
  2. configure the mail/imap layer to work with yahoo, if not possible, use a free mail, but only leave the configs if it is possible with yahoo