Removes obsolete csit-hc2vpp job and adds 2 new jobs:
- hc2vpp-csit-integration - runs on master after hc2vpp-integration succeeds
- hc2vpp-csit-verify - can be run manually on commits to hc2vpp project
Related csit change - https://gerrit.fd.io/r/4170
Change-Id: I0552c593e7080351e1d53c4b0b0d5a7aeb21089d
Signed-off-by: selias <samelias@cisco.com>