[INT] Add testsuite for vnf lifecycle validation

[INT] Add testsuite for vnf lifecycle validation

The new testsuite is intended for heat-based VNFs going through
the OPNFV VNF lifecycle validation. At the end of the test it
will package up the results into a tarball for submission to the
OVP portal.

The testcase uploads a VNF pacakge and
- executes the VVP validation scripts
- models and distributes in SDC
- instantiates via VID
- validates the stack in OpenStack

WIP instructions available here:
https://wiki.onap.org/pages/viewpage.action?pageId=68546123

Issue-ID: INT-1197
Change-Id: I2ef827c64b64bdc7e2259806d86d6272cf77221c
Signed-off-by: stark, steven <steven.stark@att.com>