[600][adas]修复点云分发线程阻塞引起的OOM，点云分发线程中如果堆积>=1条数据时将先移除所有数据后再插入新的数据（无法确定点云数据是否有用数据，故移除所有）

libraries/mogo-adas/src/main/java/com/zhidao/support/adas/high/thread/DispatchHandler.java

@@ -63,6 +63,14 @@ public class DispatchHandler {
 
     public void sendRawMessage(RawData raw) {
         start();
+        if (messageType == MessagePad.MessageType.MsgTypePointCloud) {
+            boolean isIdle = mBaseHandler.getLooper().getQueue().isIdle();
+//            Log.i("TimeConsuming", mThread.getName() + " 当前消息队列是否处于空闲状态=" + isIdle);
+            if (!isIdle) {
+                mBaseHandler.removeCallbacksAndMessages(null);
+//                Log.i("TimeConsuming", mThread.getName() + " 移除所有消息后，当前消息队列是否处于空闲状态=" + mBaseHandler.getLooper().getQueue().isIdle());
+            }
+        }
         Message msg = Message.obtain();
         msg.obj = raw;
         msg.what = WHAT_DISPATCH;