Related to livekit/protocol#273
This PR adds:
- ParticipantResumed - for when ICE restart or migration had occurred
- TrackPublishRequested - when we initiate a publication
- TrackSubscribeRequested - when we initiate a subscription
- TrackMuted - publisher muted track
- TrackUnmuted - publisher unmuted track
- TrackPublish/TrackSubcribe events will indicate when those actions have been successful, to differentiate.
* Fix handling of non-monotonic timestamps
Timed version is inspired by Hybrid Clock. We used to have a mixed behavior
by using time.Time:
* during local comparisons, it does increment monotonically
* when deserializing remote timestamps, we lose that attribute
So it's possible for two requests to be sent in the same microsecond, and
for the latter one to be dropped.
To fix that behavior, I'm switching it to keeping timestamps to consolidate
that behavior, and accepting multiple updates in the same ms by incrementing ticks.
Also using @paulwe's idea of a version generator.
David Zhao