Feature request password toogle & left drawable

[AlexisQapa]

Hi,

I'm evaluating this lib as a replacement for text input layout with editText

It would be nice to have a password visibility toogle (before the clear button so it doesn't move) when the field is in password mode.

Another nice thing would be to fix the left drawable or to offer a replacement (customisable as clear button) in front of the field. One final touch would be to be able to draw or not the line under the front icon.

Nevermind left drawable is working and adding horizontal padding to the floating label fixed it.