Feature request: profiles for passwords with requirements or constraints

[Celger]

First of all, I would like to thank you. This is a very usefull extension. I understand that your proposal is to make a very simple yet handy extension, however maybe this new feature could make this extension more helpfull.

Is that possible to add some restrictions or requirements in the generated password? Some sites asks to provide a password with letters (lower and upper), numbers and special chars (!,@...).

Once again, thx