Moved some of the node management functions from FSMesh to FSLineMesh… #616

Job	Run time
call_workflow / Start self-hosted EC2 runner	2m 18s
call_workflow / Clone and build	4m 47s
call_workflow / Stop self-hosted EC2 runner	1m 22s
call_workflow / Publish to S3	19s
call_workflow / Upload artifacts to repo	26s
call_workflow / Run test suite	0s
	9m 12s

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