update bullet so it actually works

Moved the addSourceDirectory for physics/Bullet into the Engine/Source/CMakeLists.txt file that way it can actually appear where we expect it to in the solution explorer.

Engine/lib/bullet/examples/TinyAudio/b3SoundEngine.h

@@ -0,0 +1,55 @@
+#ifndef B3_SOUND_ENGINE_H
+#define B3_SOUND_ENGINE_H
+
+#include "Bullet3Common/b3Scalar.h"
+#include "b3Sound_C_Api.h"
+
+struct b3SoundMessage
+{
+	int m_type;  //B3_SOUND_SOURCE_TYPE
+	double m_amplitude;
+
+	double m_frequency;
+	int m_wavId;
+
+	double m_attackRate;
+	double m_decayRate;
+	double m_sustainLevel;
+	double m_releaseRate;
+	bool m_autoKeyOff;
+
+	b3SoundMessage()
+		: m_type(B3_SOUND_SOURCE_SINE_OSCILLATOR),
+		  m_amplitude(0.5),
+		  m_frequency(440),
+		  m_wavId(-1),
+		  m_attackRate(0.001),
+		  m_decayRate(0.00001),
+		  m_sustainLevel(0.5),
+		  m_releaseRate(0.0005),
+		  m_autoKeyOff(false)
+	{
+	}
+};
+
+class b3SoundEngine
+{
+	struct b3SoundEngineInternalData* m_data;
+
+public:
+	b3SoundEngine();
+	virtual ~b3SoundEngine();
+
+	void init(int maxNumSoundSources, bool useRealTimeDac);
+	void exit();
+
+	int getAvailableSoundSource();
+	void startSound(int soundSourceIndex, b3SoundMessage msg);
+	void releaseSound(int soundSourceIndex);
+
+	int loadWavFile(const char* fileName);
+
+	double getSampleRate() const;
+};
+
+#endif  //B3_SOUND_ENGINE_H