DRILL-5721: Query with only root fragment and no non-root fragment hangs when Drillbit to Drillbit Control Connection has network issues
Note: 1) To resolve the issue all the fragments including root fragment which are assigned to be executed on Foreman node
are scheduled locally and not sent over Control Tunnel. Also the FragmentStatusReporter is updated to sent the
status update locally by fragments running on Foreman node.
2) Refactor for FragmentManager, setupRootFragment and startNewFragment
3) Update the test added for DRILL-5701 as there is change in behavior
