Before pion-WebRTC will fail if you bounce between STUN/Host
candidates. Our network code incorrectly failed to share SRTP/DTLS state
between all ports.
DataChannel messages are now printed to stdout. This also adds a new
datachannel package that parses ChannelOpen, and starts the skeleton of
getting the data to the public API
Update gstreamer-receive to create pipelines for each input.
Currently we don't allow the user to pass in what codecs they support and we don't
take into account the offer. The API will need to be updated to catch
both these signaling errors. The user will pass a slice of support
codecs.
Before when using libsrtp it copied data for us. Now
that we decrypt in place we need to copy the buffer, the
buffer we are using to recieve UDP packets can't be shared outside
network loop
