get Streaming Flow Graph (#1803)

[golanha]

• get Streaming Flow Graph

• fix default flow

• fix flows show by key

• fix endpoint keyflow

• fix endpoint keyflow in payload

• fix error default stream

• remove comments

• add graph to batch

• fix null in pipeline get graph

• add build All Flows when streaming

• fix isBuildAllFlows node not found any flow

• fix node empty flow

• fix remove node from list

• fix node name error

• fix undefined node

• remove join string flow

• fix get key flow

• fix error find key

• fix flow view

• add swagger to grapg by streaming flow

• fix swagger graph preview

• fix name pipeline null

• add name in api get graph preview by name

• fix graph get by name stream

• fix build all flow

• add stateType tp graphql

• add stateType in PipelineForJobNodes

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