群组成员表添加成员索引和获取2个人共同群组的接口

broker/src/main/java/win/liyufan/im/IMTopic.java

@@ -37,6 +37,8 @@ public interface IMTopic {
     String GetGroupMemberTopic = "GPGM";
     String TransferGroupTopic = "GTG";
     String SetGroupManagerTopic = "GSM";
+    String GetMyGroupsTopic = "GMGS";
+    String GetCommonGroupsTopic = "GCGS";
 
     String GetUserInfoTopic = "UPUI";
     String ModifyMyInfoTopic = "MMI";