e2e: fix resume/full-reconnect. (#194)

* fix: full re-connect.

* chore: Reset fullReConnect state after ConnectionState is emitted.

* Support full reconnect, fix Migration, NodeFailure, FullReconnect test cases.

* revert Timeouts.connection.

* update.

* Refactor the resume/reconnect implementation.

* more changes.

* update.

* Changed to simpler reconnect/recovery logic.

* update.

* update.

* code format.

* tidy.

* bump version for flutter-webrtc.

* chore: Remove unused exception class (SignalReconnectError).

* chore: rename `fullReconnectOnNext` to `fullReconnect`.

* update.

* chore: Revert changes for `unpublishTrack`.

* chore: Reconnect signalClient when resumeConnection.

* revert `rethrow` in engine.connect.

* Use removePublishedTrack instead of unpublishTrack (RemoteParticipant).

* chore: Correctly handle PeerConnectionState for resume/full-reconnect.

* tidy.

lib/src/participant/local.dart

@@ -240,6 +240,18 @@ class LocalParticipant extends Participant<LocalTrackPublication> {
     await pub.dispose();
   }
 
+  Future<void> rePublishAllTracks() async {
+    final tracks = trackPublications.values.toList();
+    trackPublications.clear();
+    for (LocalTrackPublication track in tracks) {
+      if (track.track is LocalAudioTrack) {
+        await publishAudioTrack(track.track as LocalAudioTrack);
+      } else if (track.track is LocalVideoTrack) {
+        await publishVideoTrack(track.track as LocalVideoTrack);
+      }
+    }
+  }
+
   /// Publish a new data payload to the room.
   /// @param destinationSids When empty, data will be forwarded to each participant in the room.
   Future<void> publishData(