FTP password

Add property ftpPassword to Genesys user.

In user profile page, for roles ADMINISTRATOR and VETTED_USER display button "Generate FTP password". Upon clicking the button, a random password is generated, the hash of the password is saved to ftpPassword and the plain text password is shown one time to the user:

Your FTP credentials are:
Username: user's-email
Password: generated-password

The new password must pass current PasswordPolicy.

If user has a non-blank ftpPassword, her user profile must display the message:

Your FTP credentials are:
Username: user's-email
Password: *

(Just display the *)