Adds Password lenght field

[GianCastle]

It's uncomfortable having to drag a Progress Bar to change the size of my password. Therefore, as a user I would like the Span of the password size to be replaced by a Text, so that users can handle their password lenght more eficiently.

[angelmadames]

@GianCastle I don't think it's a good idea to replace, I'd rather have the two options available. If I want to use a progress bar or a fixed text box, let me choose.