Add a debugging VFS.

extras/vfs/debugging/miniaudio_vfs_debugging.h

@@ -0,0 +1,27 @@
+#ifndef miniaudio_vfs_debugging_h
+#define miniaudio_vfs_debugging_h
+
+#include "../../../miniaudio.h"
+
+/*
+This is a VFS for debugging purposes. I use it for things like artificial latency.
+*/
+typedef struct ma_vfs_debugging_config
+{
+    ma_vfs* pUnderlyingVFS;             /* The underlying VFS to which all calls are forwarded. */
+    ma_uint32 latencyInMilliseconds;    /* The amount of latency to introduce in milliseconds. This will be done with a sleep every read. */
+} ma_vfs_debugging_config;
+
+MA_API ma_vfs_debugging_config ma_vfs_debugging_config_init(ma_vfs* pUnderlyingVFS, ma_uint32 latencyInMilliseconds);
+
+
+typedef struct ma_vfs_debugging
+{
+    ma_vfs_callbacks cb;    /* Must be first. */
+    ma_vfs_debugging_config config;
+} ma_vfs_debugging;
+
+MA_API ma_result ma_vfs_debugging_init(const ma_vfs_debugging_config* pConfig, ma_vfs_debugging* pVFS);
+
+
+#endif  /* miniaudio_vfs_debugging_h */