Automatically craete a new file when running add

[codeswhite]

Instead of letting the user a choice, Create a new file automatically to store future

    def _get_wordlist_path(self):
        if self.current:
            return self.current
        pr('Please choose a wordlist')
        return choose_file(self.workspace)

Make it:

    def _get_wordlist_path(self):
        if self.current:
            return self.current
        pr('Creating a new wordlist for you')
        # Creating blah blah
        return TheCreatedWordlist