adding graph api end points
implemented all vertices call
implemented all edges call
adding assertion on edges
adding setup and teardown methods
adding methods to list entities
changing name to GraphHelper
moving to lineage package
getting list of all entities
methods to delete all entities
refactoring classes
moving assertions to its own file
adding vertex filter tests
type of _id of edge and vertex don't match
adding more assertions to testAllEdges
adding testColoToEntityNode
using collection instead of arrays
added test from colo to cluster entity
renaming to lineage test
added clusterNodeToFeedNode test