[Feature Request] Hotkeys for switching audio devices

It would really be nice if there were hotkeys to switch the Input and Output audio devices quickly.

Example use cases:
- Wired headset user quickly switching to speakers while walking around the room to not miss the conversation
- Wireless headset user who usually talks through a desk microphone walking away from the desk, quickly switching to the headset's mic.
- User switching between VR set audio and audio headset, depending on where the current game is played.

Teamspeak and Mumble both have options to set up these hotkeys and it's the only thing I'm really missing since switching to Discord.