Initial commmit

docker/build/compass is for building compass docker image, which
should be triggered automatically by CI(or other periodic jobs).
under docker/build/scripts there is a sample start that can be
included in Dockerfile(uncomment CMD["/root/sample_start"] when
testing this image build.

Change-Id: I05dbbde67bd82803971cf3f90a8dbea6d57b0776