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/BLEDescriptor.h

@@ -28,31 +28,37 @@ public:
 	BLEDescriptor(BLEUUID uuid);
 	virtual ~BLEDescriptor();
 
-	uint16_t getHandle();
-	size_t   getLength();
-	BLEUUID  getUUID();
-	uint8_t* getValue();
+	uint16_t getHandle();                                   // Get the handle of the descriptor.
+	size_t   getLength();                                   // Get the length of the value of the descriptor.
+	BLEUUID  getUUID();                                     // Get the UUID of the descriptor.
+	uint8_t* getValue();                                    // Get a pointer to the value of the descriptor.
 	void handleGATTServerEvent(
 			esp_gatts_cb_event_t      event,
 			esp_gatt_if_t             gatts_if,
 			esp_ble_gatts_cb_param_t* param);
-	void setCallbacks(BLEDescriptorCallbacks* pCallbacks);
-	void setValue(uint8_t* data, size_t size);
-	void setValue(std::string value);
-	std::string toString();
+
+	void setAccessPermissions(esp_gatt_perm_t perm);	      // Set the permissions of the descriptor.
+	void setCallbacks(BLEDescriptorCallbacks* pCallbacks);  // Set callbacks to be invoked for the descriptor.
+	void setValue(uint8_t* data, size_t size);              // Set the value of the descriptor as a pointer to data.
+	void setValue(std::string value);                       // Set the value of the descriptor as a data buffer.
+
+	std::string toString();                                 // Convert the descriptor to a string representation.
 
 private:
 	friend class BLEDescriptorMap;
 	friend class BLECharacteristic;
-	BLEUUID              m_bleUUID;
-	esp_attr_value_t     m_value;
-	uint16_t             m_handle;
-	BLECharacteristic*   m_pCharacteristic;
+	BLEUUID                 m_bleUUID;
+	uint16_t                m_handle;
 	BLEDescriptorCallbacks* m_pCallback;
+	BLECharacteristic*      m_pCharacteristic;
+	esp_gatt_perm_t				  m_permissions = ESP_GATT_PERM_READ | ESP_GATT_PERM_WRITE;
+	FreeRTOS::Semaphore     m_semaphoreCreateEvt = FreeRTOS::Semaphore("CreateEvt");
+	esp_attr_value_t        m_value;
+
 	void executeCreate(BLECharacteristic* pCharacteristic);
 	void setHandle(uint16_t handle);
-	FreeRTOS::Semaphore m_semaphoreCreateEvt = FreeRTOS::Semaphore("CreateEvt");
-};
+}; // BLEDescriptor
+
 
 /**
  * @brief Callbacks that can be associated with a %BLE descriptors to inform of events.