Add payload rpc interface
Add payload rpc interface

kod3r/taskgraph,BaiGang/taskgraph,dzch/taskgraph,fengjingchao/taskgraph,go-distributed/meritop,go-distributed/meritop,dzch/taskgraph,BaiGang/taskgraph,taskgraph/taskgraph,5kg/taskgraph,fengjingchao/taskgraph,plutoshe/taskgraph,5kg/taskgraph,taskgraph/taskgraph,plutoshe/mapreduceOfTaskgraph,plutoshe/taskgraph,kod3r/taskgraph,plutoshe/mapreduceOfTaskgraph