Add JJB for 3 new jobs of docker img building

The OTF repo now has code for 3 new VTHs.  This submission adds the docker
job definitions for building docker container images for these 3 VTHs.
The definitions have been test successful on Jenkins sandbox:
https://jenkins.o-ran-sc.org/sandbox/view/All/.

Change-Id: I3a983f9b8ad9fff96a94eefa900fb1ae71769269
Signed-off-by: Lusheng Ji <lji@research.att.com>