Hope to integrate the "vue native websocket" into vuex , and modules support namespace.

[qq476649388]

vue native websocket into vuex， have an important issue :"[vuex] unknown mutation SOCKET_ONOPEN","[vuex] unknown mutation SOCKET_ONMESSAGE","[vuex] unknown mutation SOCKET_ONCLOSE" eg.. but , I test the 'vue native websocket' separately , I found it no problem, I think vueboilerplate (VBP) 's structure should be optimize , thanks.