Investigate WebRTC transport

[jackjansen]

This issue is a placeholder so we have an issue number to create a branch.

@jvdrhoof and @jackjansen will do some experiments to see how we can integrate webrtc as an alternative to socketio/dash/tcp transport.

[jackjansen]

First success. @jvdrhoof has created a Unity project that uses webRTC to transfer webcam streams between two instances.

The Unity project and the webrtc reflector will be put into GitHub repositories and the URLs will be added here.

We continue in July.

[jvdrhoof]

Repository available at https://github.com/jvdrhoof/MyWebRTCPlayer

[jackjansen]

Making a lot of progress tonight. Some notes that we shouldn't forget:

• WebRTCSFU should get a --verbose flag (for normal use: print log output for important events) and a --debug flag (print everything about everything)
• GoWebRTCPeer should get a --verbose flag (for normal use: print log output for important events) and a --debug flag (print everything about everything)
• All log messages should be structured (Program: Module: Opened connection to blablablabla)
• GoWebRTCPeer should be renamed to WebRTCPeer. Maybe all three repos should get a prefix. @jvdrhoof to decide.
• All three repos should build with CMake.
• All three repos should use Github actions to build their stuff (and ideally do some limited testing too).
• All three repos should get a naming convention where built products are stored, and how they are named.

[jackjansen]

• WebRTCSFU needs an index.html that doesn't exist.
• VR2Gather now gets a URL of some form for webrtc sessions. I think it is in the same place where the Dash URL is, but we need to check to format, and we need to run GoWebRTCPeer with that URL as a parameter.

[jackjansen]

• Need to add code to AsyncWebRTCWriter (and maybe reader) to check health of peer.
• Need to kill peer when object disposed.

[jackjansen]

• Need to look at loading and unloading of the DLL.

[jackjansen]

This issue has been superseded by #166