PCTransportManager (#909)
* Make peerconnection private on PCTransport
* revert enablesimulcast for this branch
* Create moody-nails-flash.md
* fix connection check
* initial pcmanager tap in
* WIP managed transport connection
* shift more responsibilities to transport manager
* leaky PC lifecycle
* add subscriber methods to pcmanager
* wip publisher methods on pcmanager
* move primary transport handling into manager
* fix e2ee reconnect behaviour
* fix publisher reconnect scenarios
* wip transport lifecycle
* negotiation in pc manager
* fix peer connection leak
* cleanup
* more cleanup
* pass state on transport callbacks
* Log syncState failure
* More explicit method naming
* make getConnectedAddress configurable
* Rename onLocalOffer to onPublisherOffer
* Send sync state also for publisher only
* move syncState into engine
* Create fuzzy-waves-knock.md
