YouTube to AntennaPod

Added a new hotkey with the functionality to download video and right after extract the audio from it.

This is useful to integrate with AntennaPod and consume YouTube video as podcasts.
You can use a synchronization tool like Syncthing to automatically send the downloaded files to your smartphone.

First Release

Full Changelog: https://github.com/fnfontana/GChromeCK/commits/v0.8.0