Implement screen capture audio sharing

submodules/TelegramVoip/Sources/GroupCallContext.swift

@@ -645,6 +645,10 @@ public final class OngoingGroupCallContext {
                 }
             })
         }
+
+        func addExternalAudioData(data: Data) {
+            self.context.addExternalAudioData(data)
+        }
     }
     
     private let queue = Queue()
@@ -804,4 +808,10 @@ public final class OngoingGroupCallContext {
             impl.makeIncomingVideoView(endpointId: endpointId, requestClone: requestClone, completion: completion)
         }
     }
+
+    public func addExternalAudioData(data: Data) {
+        self.impl.with { impl in
+            impl.addExternalAudioData(data: data)
+        }
+    }
 }