Add BLEDevice::stopAdvertising() helper method to compliment startAdvertising(). (espressif#3624)

Author: robert-alfaro

libraries/BLE/src/BLEDevice.cpp

@@ -578,6 +578,12 @@ void BLEDevice::startAdvertising() {
 	log_v("<< startAdvertising");
 } // startAdvertising
 
+void BLEDevice::stopAdvertising() {
+    log_v(">> stopAdvertising");
+    getAdvertising()->stop();
+    log_v("<< stopAdvertising");
+} // stopAdvertising
+
 /* multi connect support */
 /* requires a little more work */
 std::map<uint16_t, conn_status_t> BLEDevice::getPeerDevices(bool _client) {

libraries/BLE/src/BLEDevice.h

@@ -50,6 +50,7 @@ class BLEDevice {
 	/* move advertising to BLEDevice for saving ram and flash in beacons */
 	static BLEAdvertising* 	getAdvertising();
 	static void		   		startAdvertising();
+	static void		   		stopAdvertising();
 	static uint16_t 	m_appId;
 	/* multi connect */
 	static std::map<uint16_t, conn_status_t> getPeerDevices(bool client);