Add missing gk.call event handlers

Author: artemkrachulov

MatrixSDK.podspec

@@ -1,7 +1,7 @@
 Pod::Spec.new do |s|
 
   s.name         = "MatrixSDK"
-  s.version      = "0.26.4.6"
+  s.version      = "0.26.4.9"
   s.summary      = "The iOS SDK to build apps compatible with Matrix (https://www.matrix.org)"
 
   s.description  = <<-DESC

MatrixSDK/Contrib/Swift/JSONModels/MXEvent.swift

@@ -165,7 +165,7 @@ public enum MXEventType: Equatable, Hashable {
     }
 
     public init(identifier: String) {
-        let events: [MXEventType] = [.roomName, .roomTopic, .roomAvatar, .roomMember, .roomCreate, .roomJoinRules, .roomPowerLevels, .roomAliases, .roomCanonicalAlias, .roomEncrypted, .roomEncryption, .roomGuestAccess, .roomHistoryVisibility, .roomKey, .roomForwardedKey, .roomKeyRequest, .roomMessage, .roomMessageFeedback, .roomRedaction, .roomThirdPartyInvite, .roomTag, .presence, .typing, .callInvite, .callCandidates, .callAnswer, .callSelectAnswer, .callHangup, .callReject, .callNegotiate, .callReplaces, .callRejectReplacement, .callAssertedIdentity, .callAssertedIdentityUnstable, .reaction, .receipt, .roomTombStone, .keyVerificationStart, .keyVerificationAccept, .keyVerificationKey, .keyVerificationMac, .keyVerificationCancel, .keyVerificationDone, .secretRequest, .secretSend, .secretStorageDefaultKey, .taggedEvents, .spaceChild, .spaceOrder, .pollStart, .pollResponse, .pollEnd, .beaconInfo, .beacon]
+        let events: [MXEventType] = [.roomName, .roomTopic, .roomAvatar, .roomMember, .roomCreate, .roomJoinRules, .roomPowerLevels, .roomAliases, .roomCanonicalAlias, .roomEncrypted, .roomEncryption, .roomGuestAccess, .roomHistoryVisibility, .roomKey, .roomForwardedKey, .roomKeyRequest, .roomMessage, .roomMessageFeedback, .roomRedaction, .roomThirdPartyInvite, .roomTag, .presence, .typing, .callInvite, .callInviteGk, .callCandidates, .callAnswer, .callAnswerGk, .callSelectAnswer, .callHangup, .callHangupGk, .callReject, .callRejectGk, .callNegotiate, .callReplaces, .callRejectReplacement, .callAssertedIdentity, .callAssertedIdentityUnstable, .reaction, .receipt, .roomTombStone, .keyVerificationStart, .keyVerificationAccept, .keyVerificationKey, .keyVerificationMac, .keyVerificationCancel, .keyVerificationDone, .secretRequest, .secretSend, .secretStorageDefaultKey, .taggedEvents, .spaceChild, .spaceOrder, .pollStart, .pollResponse, .pollEnd, .beaconInfo, .beacon]
 
         if let type = events.first(where: { $0.identifier == identifier }) {
             self = type

MatrixSDK/VoIP/MXCall.m

@@ -509,7 +509,7 @@ - (void)hangupWithReason:(MXCallHangupReason)reason
         void(^terminateBlock)(void) = ^{
             //  terminate with a fake reject event
             MXEvent *fakeEvent = [MXEvent modelFromJSON:@{
-                @"type": kMXEventTypeStringCallReject,
+                @"type": self->_isGkCall ? kMXEventTypeStringCallRejectGk : kMXEventTypeStringCallReject,
                 @"content": content
             }];
             fakeEvent.sender = self->callManager.mxSession.myUserId;
@@ -555,7 +555,7 @@ - (void)hangupWithReason:(MXCallHangupReason)reason
         void(^terminateBlock)(void) = ^{
             //  terminate with a fake hangup event
             MXEvent *fakeEvent = [MXEvent modelFromJSON:@{
-                @"type": kMXEventTypeStringCallHangup,
+                @"type": self->_isGkCall ? kMXEventTypeStringCallHangupGk : kMXEventTypeStringCallHangup,
                 @"content": content
             }];
             fakeEvent.sender = self->callManager.mxSession.myUserId;
@@ -1653,6 +1653,7 @@ - (void)terminateWithReason:(MXEvent *)event
         switch (event.eventType)
         {
             case MXEventTypeCallHangup:
+            case MXEventTypeCallHangupGk:
             {
                 MXCallHangupEventContent *content = [MXCallHangupEventContent modelFromJSON:event.content];
                 MXCallHangupReason reason = content.reasonType;
@@ -1696,6 +1697,7 @@ - (void)terminateWithReason:(MXEvent *)event
                 break;
             }
             case MXEventTypeCallReject:
+            case MXEventTypeCallRejectGk:
             {
                 _endReason = MXCallEndReasonBusy;
                 break;