Add simulator audio support

Devices/simulator/Source/drivers/sdl_audio.h

@@ -0,0 +1,13 @@
+// SPDX-License-Identifier: Apache-2.0
+#pragma once
+
+#include <tactility/drivers/audio_codec.h>
+
+struct SdlAudioConfig {
+    AudioCodecDirection direction;
+};
+
+#ifdef __APPLE__
+// Nonblocking: ERROR_RESOURCE_BUSY means that the user has not answered the prompt yet.
+error_t sdl_audio_microphone_permission();
+#endif