Implemented Devices Watcher API for Windows

Author: melanchall

Resources/Native/macOS/NativeApi-macOS.cpp

@@ -299,7 +299,7 @@ struct SessionHandle
     OSStatus clientCreationStatus;
     InputDeviceCallback inputDeviceCallback;
     OutputDeviceCallback outputDeviceCallback;
-    std::atomic<char> devicesWatcherEnabled = 0;
+    std::atomic<char> devicesWatcherEnabled{0};
 };
 
 void HandleSource(MIDIEndpointRef source, SessionHandle* sessionHandle, char operation)