Add script for use with CI that invokes the dbus-tests target
Add script for use with CI that invokes the dbus-tests target

The script creates a STRATIS_DEPS_DIR at the top level to hold the needed
dependencies of the tests.

The STRATISD environment variable is set to the stratisd executable.  The
python code starts/stops the process as necessary for the tests.

Signed-off-by: Todd Gill <7afbb5ba98932b8ffb9cc9e6675c4792db142529@redhat.com>

stratis-storage/stratis-cli,stratis-storage/stratis-cli