update BLE library for ESP32 env compatibility

with the last version of ESP32 arduino env it is not possible to compile on ESP32, we get "missing gatt_api.h" ERROR. So as to avoid that we need to use the last version of the nkolban library for BLE 0.4.16

lib/ESP32_BLE_Arduino/src/BLEDevice.h

@@ -13,29 +13,44 @@
 #include <esp_gattc_api.h>   // ESP32 BLE
 #include <map>               // Part of C++ STL
 #include <string>
-#include <bt.h>
+#include <esp_bt.h>
 
 #include "BLEServer.h"
 #include "BLEClient.h"
 #include "BLEUtils.h"
 #include "BLEScan.h"
 #include "BLEAddress.h"
+
 /**
  * @brief %BLE functions.
  */
 class BLEDevice {
 public:
 
-	static BLEClient* createClient();
-	static BLEServer* createServer();
-	static void       dumpDevices();
-	static BLEScan*   getScan();
-	static void       init(std::string deviceName);
+	static BLEClient*  createClient();    // Create a new BLE client.
+	static BLEServer*  createServer();    // Cretae a new BLE server.
+	static BLEAddress  getAddress();      // Retrieve our own local BD address.
+	static BLEScan*    getScan();         // Get the scan object
+	static std::string getValue(BLEAddress bdAddress, BLEUUID serviceUUID, BLEUUID characteristicUUID);	  // Get the value of a characteristic of a service on a server.
+	static void        init(std::string deviceName);   // Initialize the local BLE environment.
+	static void        setPower(esp_power_level_t powerLevel);  // Set our power level.
+	static void        setValue(BLEAddress bdAddress, BLEUUID serviceUUID, BLEUUID characteristicUUID, std::string value);   // Set the value of a characteristic on a service on a server.
+	static std::string toString();        // Return a string representation of our device.
+	static void        whiteListAdd(BLEAddress address);    // Add an entry to the BLE white list.
+	static void        whiteListRemove(BLEAddress address); // Remove an entry from the BLE white list.
+	static void		   setEncryptionLevel(esp_ble_sec_act_t level);
+	static void		   setSecurityCallbacks(BLESecurityCallbacks* pCallbacks);
+	static esp_err_t   setMTU(uint16_t mtu);
+	static uint16_t	   getMTU();
+	static bool        getInitialized(); // Returns the state of the device, is it initialized or not?
 
 private:
 	static BLEServer *m_pServer;
 	static BLEScan   *m_pScan;
 	static BLEClient *m_pClient;
+	static esp_ble_sec_act_t 	m_securityLevel;
+	static BLESecurityCallbacks* m_securityCallbacks;
+	static uint16_t		m_localMTU;
 
 	static esp_gatt_if_t getGattcIF();
 
@@ -53,9 +68,6 @@ private:
 		esp_gap_ble_cb_event_t  event,
 		esp_ble_gap_cb_param_t* param);
 
-public:
-	static void setPower(esp_power_level_t powerLevel);
-
 }; // class BLE
 
 #endif // CONFIG_BT_ENABLED