Multi-factor authentication

[NormySan]

We should add the Two-Factor Authentication module to allow for better security out of the box. The default method for verification should probably be a time based one time password sent either through mail or using an app like google authenticator. All accounts should be required to have a two-factor authentication method applied.

Note: This should be done first when the Drupal 10 version of the module reaches a stable release since we do not want to use modules in alpha.