* Adds support for stream link to be used to get a rtmp/video source

* Changes stream link to use git repo for stream link

* Changes to save the live url used for stream link snipes.

* Made some testing changes to inputs and mixers, nothing fixes the audio/video sync issues. Need to start the mixer first then the output and then attach inputs to the mixer after both are working to fix the audio sync issues. Also added support for proc title so you can name and find brave in process managers.

* Adds support for youtubedl

* changes the audio default level to 100%

* Updates to show channel info for youtube-dl inputs

* Updates the channel name to not overide the others, you can set it via self.channel during creation

* Adds support for quick adding of stream link and youtube dl and experiment text overlay

* Updates to reference the custom git in the dockerfile

* updates the pipfile

* Updating the docker file again, trying to fix build dep issues.

* Updates to add notes about docker

* Updates to switch from playbin3 to playbin, which should help with buffering on load of youtubedl,etc

* Reverts change in mixer linking.