BLE基本工具类iOS

ble简单工具类，+(instancetype)sharedManager;//1.搜索蓝牙设备-(void)searchBleDevices;//2.获取连接中的设备-(CBPeripheral*)connectedDevice;//3.断开一个设备-(void)disConnectDevice:(CBPeripheral*)aCBPeripheral;//4.连接一个指定设备-(void)connectDevice:(CBPeripheral*)aCBPeripheral;//5.停止搜索-(void)stopSearchBle;