add password and login/password input type for prompt.dialogType

Add two more parameters for configuration of your dialog.prompt:

- inputType            Textbox input type  ("password", "loginpassword" - default: "plain text")
   'password':text-entry field doesn't show the text-input, but dots •
   'loginpassword': shows prompt with login AND password fields (where password fields are obscured)

-obscureText   		The input text for the obscured (password) text box, if inputType is 'loginpassword'

notification.js needs to get changed accordingly