GitLab

More precisely from another directory, instead of requiring to be
in root Bonita directory to launch start/stop-bonita.sh/.bat 

Closes [RUNTIME-297](https://bonitasoft.atlassian.net/browse/RUNTIME-297)

If we directly publish the image to `bonitasoft-rd` quay organization,
it means we do not need to update the subscription DockeFile in order
to push those images to `bonitasoft` organization.

Adapt docker build file to be able to build other version than SNAPSHOT
using local file. Also drop the possibility to build sp image from an
external url. (no more sha256 needed)

Closes [RUNTIME-142](https://bonitasoft.atlassian.net/browse/RUNTIME-142)

Signed-off-by: Romain Bioteau <romain.bioteau@bonitasoft.com>

As build arg BONITA_VERSION was ignored

that suits the docker version, as it is different from the distrib one.
For now, the version is copied, and any modification in the file must
be copied to the docker version.
With the proposed change, the docker version is generated from the
distrib version, with minor changes

to test docker image

(+ include tests in docker image build on CI) => commented out for now,
as GOSS tool is missing on the CI slave image

Closes [BR-534](https://bonitasoft.atlassian.net/browse/BR-534)

 Covers [BR-500](https://bonitasoft.atlassian.net/browse/BR-500)

Closes [BR-530](https://bonitasoft.atlassian.net/browse/BR-530)

Now it builds BOS & SP images on PR and master/dev builds and pushes it to quay.io (BOS + SP)

Closes [BR-530](https://bonitasoft.atlassian.net/browse/BR-530)