Refactor native audio (Fixed #135)

...in/java/de/tobias/playpad/plugin/ModernPluginManager.java

...iveAudio/src/main/java/de/tobias/playpad/NativeAudio.java

...java/de/tobias/playpad/audio/mac/AVAudioPlayerBridge.java

...va/de/tobias/playpad/audio/mac/NativeAudioMacHandler.java

...obias/playpad/audio/mac/NativeAudioMacHandlerFactory.java

...NativeAudio/src/main/java/de_tobias_playpad_NativeAudio.h

...in/java/de_tobias_playpad_audio_mac_AVAudioPlayerBridge.h

...inNativeAudio/src/main/resources/mac/libNativeAudio.dylib

...cala/de/tobias/playpad/plugin/NativeAudioPluginImpl.scala

...tobias/playpad/plugin/loader/WindowsAudioImplLoader.scala