Adding multijob builder and script for deploy of testapi

Adding multijob builder and script for deploy of testapi

docker-update and generate-doc will run in opnfv-build defaults, and
docker-deploy will run in testresults.

Script will ensure this :-
Docker Images in testresults.opnfv.org
- N-1 docker image will be labeled as stable.
- N docker image will be latest.

Docker containers
- N-1 container will be stopped but not removed but will be removed in next iteration.

JIRA: FUNCTEST-689

Change-Id: I8c66ff716bae969b34fe698cdfa6140ef494ec49
Signed-off-by: rohitsakala <rohitsakala@gmail.com>