[rtMessaging] Customize api list on rtMessaging clients

HomeServer: https://vn-rtmessaging.rtcenter.org

1.Insert Room Matrix

2.Get Public Room

3.Get User List (OLD)

4.Get User List support filter, limit (NEW)

exp: https://rtcenter.org/services/matrix-members-filter?filter=li&uuid_matrix=@C0201483693005.3775586f5bcd5c7921.49450790:vn-rtmessaging.rtcenter.org&limit=10