蓝牙停止扫描和一些bug修复

Assets/Scripts/Devices/Ble/Interfaces/IBleWinHwInterface.cs

@@ -19,6 +19,7 @@ namespace Assets.Scripts.Devices.Ble.Interfaces
         void WriteCharacteristic(BleCharacteristicInfo characteristic, byte[] data);
         void ReadCharacteristic(BleCharacteristicInfo characteristic, CharacteristicReadCallback callback);
         void Dispose();
+        void StopScan();
         BleState BleState { get; set; }
         Dictionary<string, BleAdvertisementInfo> pCache { get; set; }
         event BluetoothStateChangedCallback BluetoothStateChangedEvent;