add wink command

pc/app.h

@@ -22,6 +22,7 @@ void printing_init();
 
 //                              0xRRGGBB
 #define LED_INIT_VALUE			0x000800
+#define LED_WINK_VALUE			0x000008
 #define LED_MAX_SCALER          30
 #define LED_MIN_SCALER          1
 // # of ms between each change in LED

pc/device.c

@@ -447,4 +447,7 @@ void ctap_overwrite_rk(int index,CTAP_residentKey * rk)
     printf("Warning: rk not implemented\n");
 }
 
-
+void device_wink()
+{
+    printf("*WINK*\n");
+}