提供一个可供外部系统调用发起流程的接口

```
var requestJson = JSON.parse(requestText);
let result = {
"type":"success"
}
const title = requestJson["title"]||"无标题";
const process = requestJson["process"]||"cc06aea0-669a-4e6e-81a0-0d80f765a0cd ";
const user = requestJson["user"];
const data = {
"title":title,
"identity":user,
"data":{
"subject":title
}
}
this.Actions.load("x_processplatform_assemble_surface").WorkAction.create(process,data,function(json){
result.id = json.data[0].work
},function(){
result.type = "error"
})

this.response.setBody(result,"application/json");
```