添加Mesh相关SDK

common/src/main/java/cn/wildfirechat/pojos/mesh/PojoUserConferenceRequest.java

@@ -0,0 +1,12 @@
+package cn.wildfirechat.pojos.mesh;
+
+public class PojoUserConferenceRequest {
+    public String domainId;
+    public String clientID;
+    public String fromUser;
+    public String request;
+    public long sessionId;
+    public String roomId;
+    public String data;
+    public boolean advanced;
+}