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/internal/events.dart

@@ -139,10 +139,12 @@ class SignalConnectionStateUpdatedEvent extends ConnectionStateUpdatedEvent
 @internal
 class EngineConnectionStateUpdatedEvent extends ConnectionStateUpdatedEvent
     with EngineEvent {
+  final bool fullReconnect;
   const EngineConnectionStateUpdatedEvent({
     required ConnectionState newState,
     required ConnectionState oldState,
     required bool didReconnect,
+    required this.fullReconnect,
     DisconnectReason? disconnectReason,
   }) : super(
           newState: newState,