Save the hashed password to the Glances folder.

def save_password(self, hashed_password):
        """Save the hashed password to the Glances folder."""
        # Create the glances directory
        safe_makedirs(self.password_dir)

        # Create/overwrite the password file
        with open(self.password_file, 'wb') as file_pwd:
            file_pwd.write(b(hashed_password))