CI: Modify jjb in releng to use vsperf build script for the nightly build

CI: Modify jjb in releng to use vsperf build script for the nightly build

This patch adds calling of the build-vsperf.sh script which starts
defined testcases for vsperf project.
The script is called for all defined VSPERF jobs with particular
options:
build-vsperf.sh daily
build-vsperf.sh merge
build-vsperf.sh verify
It brings the placeholder for basic testing after change in repo.

JIRA: VSPERF-156

Change-Id: I6d97fa6131ca396f9225c52a4dff6f42a3a139fa
Signed-off-by: Radek Zetik <radekx.zetik@intel.com>
Reviewed-by: Aric Gardner <agardner@linuxfoundation.org>
Reviewed-by: Xinyu Zhao(Jerry) <zhaoxinyu@huawei.com>
Reviewed-by: Fatih Degirmenci <fatih.degirmenci@ericsson.com>
Reviewed-by: Ulrich Kleber <Ulrich.Kleber@huawei.com>