Move the USB protocol handler into its own file.

right/src/usb_protocol_handler.h

@@ -0,0 +1,18 @@
+#ifndef __USB_PROTOCOL_HANDLER_H__
+#define __USB_PROTOCOL_HANDLER_H__
+
+// Includes:
+
+#include "usb_interface_generic_hid.h"
+
+// Macros:
+
+    #define USB_COMMAND_JUMP_TO_BOOTLOADER 0
+    #define USB_COMMAND_TEST_LED           1
+    #define USB_COMMAND_LED_DRIVER         2
+
+// Functions:
+
+    extern void UsbProtocolHandler();
+
+#endif