Video capturing code for Linux, and Windows

Contains API that connects to a camera device, and pulls video frames from it
on request from the client.

Change-Id: If1d80c57611afff637a7734ce5c3a2c874cfc85a
diff --git a/android/utils/debug.h b/android/utils/debug.h
index 06b9baf..76b21be 100644
--- a/android/utils/debug.h
+++ b/android/utils/debug.h
@@ -35,6 +35,7 @@
     _VERBOSE_TAG(avd_config,   "android virtual device configuration") \
     _VERBOSE_TAG(sensors,      "emulated sensors") \
     _VERBOSE_TAG(memcheck,     "memory checker") \
+    _VERBOSE_TAG(camera,       "camera") \
 
 #define  _VERBOSE_TAG(x,y)  VERBOSE_##x,
 typedef enum {