add bledis to hid_keyscan exmaple

windows insist to have bledis to work with

Author: hathach

libraries/Bluefruit52Lib/examples/Peripheral/hid_keyscan/hid_keyscan.ino

@@ -19,6 +19,7 @@
 
 #include <bluefruit.h>
 
+BLEDis bledis;
 BLEHidAdafruit blehid;
 
 // Array of pins and its keycode
@@ -56,6 +57,11 @@ void setup()
   Bluefruit.setTxPower(4);
   Bluefruit.setName("Bluefruit52");
 
+  // Configure and Start Device Information Service
+  bledis.setManufacturer("Adafruit Industries");
+  bledis.setModel("Bluefruit Feather 52");
+  bledis.begin();
+
   // set up pin as input
   for (uint8_t i=0; i<pincount; i++)
   {