完善ssrc符合国标，并完善很多小问题

songww

2020-05-10 3a502b36a8cfcdd455edb22e5771115559873731

 src/main/java/com/genersoft/iot/vmp/vmanager/device/DeviceController.java

@@ -1,8 +1,6 @@
package com.genersoft.iot.vmp.vmanager.device;

import java.util.List;
import java.util.concurrent.ExecutorService;
import java.util.concurrent.Executors;

import org.slf4j.Logger;
import org.slf4j.LoggerFactory;