Improve container support in tox.ini
- modify tox.ini to use dedicated scripts that can detect a local podman
installation and use it instead of docker.
- replace nbiotifications docker-compose YAML file by a standalone
container directly runnable with docker or podman.
Podman.io is a rootless and serverless alternative to Docker.io.
It avoids using sudo in many cases, what is a good thing.
It is now prefered to Docker.io by many linux distributions.
https://podman.io/
https://access.redhat.com/solutions/
3696691
https://thesynack.com/posts/docker-compose-podman/
https://martinheinz.dev/blog/35
JIRA: TRNSPRTPCE-527
Signed-off-by: guillaume.lambert <guillaume.lambert@orange.com>
Change-Id: I593568b2e17bebe784eff7b3413d0d5b829f2ade