Implement JNI and objc implementation for icecandidateerror event

This CL adds the callback on ICE Candidate Error to the Android and
the iOS SDKs.

Spec: https://www.w3.org/TR/webrtc/#dom-rtcpeerconnection-onicecandidateerror

Bug: webrtc:13446
Change-Id: I6e511aaa80f1aa8f4310d8518d1144d97470cd7e
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/239460
Reviewed-by: Henrik Andreassson <henrika@webrtc.org>
Reviewed-by: Mirko Bonadei <mbonadei@webrtc.org>
Commit-Queue: Henrik Andreassson <henrika@webrtc.org>
Cr-Commit-Position: refs/heads/main@{#35531}

sdk/android/api/org/webrtc/PeerConnection.java

@@ -118,6 +118,9 @@ public class PeerConnection {
     /** Triggered when a new ICE candidate has been found. */
     @CalledByNative("Observer") void onIceCandidate(IceCandidate candidate);
 
+    /** Triggered when gathering of an ICE candidate failed. */
+    default @CalledByNative("Observer") void onIceCandidateError(IceCandidateErrorEvent event) {}
+
     /** Triggered when some ICE candidates have been removed. */
     @CalledByNative("Observer") void onIceCandidatesRemoved(IceCandidate[] candidates);