move sunshine to src

- this will allow for common cpp workflow files within org

src/platform/macos/av_audio.h

@@ -0,0 +1,26 @@
+#ifndef SUNSHINE_PLATFORM_AV_AUDIO_H
+#define SUNSHINE_PLATFORM_AV_AUDIO_H
+
+#import <AVFoundation/AVFoundation.h>
+
+#include "third-party/TPCircularBuffer/TPCircularBuffer.h"
+
+#define kBufferLength 2048
+
+@interface AVAudio : NSObject <AVCaptureAudioDataOutputSampleBufferDelegate> {
+@public
+  TPCircularBuffer audioSampleBuffer;
+}
+
+@property(nonatomic, assign) AVCaptureSession *audioCaptureSession;
+@property(nonatomic, assign) AVCaptureConnection *audioConnection;
+@property(nonatomic, assign) NSCondition *samplesArrivedSignal;
+
++ (NSArray *)microphoneNames;
++ (AVCaptureDevice *)findMicrophone:(NSString *)name;
+
+- (int)setupMicrophone:(AVCaptureDevice *)device sampleRate:(UInt32)sampleRate frameSize:(UInt32)frameSize channels:(UInt8)channels;
+
+@end
+
+#endif //SUNSHINE_PLATFORM_AV_AUDIO_H