Added required packages to enabled YANG dependency check for Dynamic Port Breakout in VS container.
[sonic-utilities PR #766](https://github.com/Azure/sonic-utilities/pull/766) has a dependency on it.
Getting error like the following without this fix: `ImportError: No module named yang - required module not found`
Signed-off-by: Sangita Maity <sangitamaity0211@gmail.com>
* [build]: put stretch debian packages under target/debs/stretch/
* in stretch build phase, all debian packages built in that stage are placed under target/debs/stretch directory.
* for python-based debian packages, since they are really the same for jessie and stretch, they are placed under target/python-debs directory.
Signed-off-by: Guohan Lu <gulv@microsoft.com>
* [docker-base] Instruct apt-get to NOT install 'recommended' or 'suggested' packages
* Modify docker-fpm-quagga, docker-snmp-sv2 and docker-sonic-vs Dockerfile templates in order to properly install .deb dependencies
* REDIS_SERVER depends on REDIS_TOOLS; ensure REDIS_TOOLS is always installed before REDIS_SERVER
