`make containerized-test` has been added as a make target. This runs the
'make test' target in a container. All test dependencies are installed
in the container once, and the container is kept around for running
`make containerized-test` subsequently.
The test container is based on Fedora:latest so that all test tools get
easily installed and are available in a recent version. The production
container is based on the Ceph container which has CentOS as Operating
System and therefor a more stable (too old) toolset.
Signed-off-by: Niels de Vos <ndevos@redhat.com>