- The user can supply OPM_DATA_ROOT directly and this
is used.
- The user can supply OPM_DATA_ROOT_PREDEFINED and
this is used unless there is a PR against opm-data specified in the
trigger.
This is used to minimize the network traffic on the jenkins resource.
opm-data is updated nightly, and this nightly updated copy is used
unless otherwise instructed.
This commit also enables the opm-data integration tests on all runs.
