Added Bluetooth pairing PIN output for rnodeconf

Bluetooth.h

@@ -32,6 +32,7 @@ char bt_devname[11];
 
   void bt_confirm_pairing(uint32_t numVal) {
     bt_ssp_pin = numVal;
+    kiss_indicate_btpin();
     if (bt_allow_pairing) {
       SerialBT.confirmReply(true);
     } else {

Framing.h

@@ -49,6 +49,7 @@
 	#define CMD_FB_READL    0x44
 	#define CMD_DISP_INT    0x45
 	#define CMD_BT_CTRL     0x46
+	#define CMD_BT_PIN      0x62
 
 	#define CMD_BOARD		0x47
 	#define CMD_PLATFORM    0x48

Utilities.h

@@ -26,6 +26,7 @@
 #endif
 
 #if HAS_BLUETOOTH == true
+	void kiss_indicate_btpin();
   #include "Bluetooth.h"
 #endif
 
@@ -674,6 +675,18 @@ void kiss_indicate_frequency() {
 	serial_write(FEND);
 }
 
+void kiss_indicate_btpin() {
+	#if HAS_BLUETOOTH
+		serial_write(FEND);
+		serial_write(CMD_BT_PIN);
+		escaped_serial_write(bt_ssp_pin>>24);
+		escaped_serial_write(bt_ssp_pin>>16);
+		escaped_serial_write(bt_ssp_pin>>8);
+		escaped_serial_write(bt_ssp_pin);
+		serial_write(FEND);
+	#endif
+}
+
 void kiss_indicate_random(uint8_t byte) {
 	serial_write(FEND);
 	serial_write(CMD_RANDOM);