Simplified pip and conda environment; pypi deployment

[GernotMaier]

This pull requests simplifies installation and usage of V2DL3 significantly.

A simple pip install v2dl3 should do all and then we call the three scripts as command line tools:

• v2dl3-vegas
• v2dl3-generate-index-file
• v2dl3-eventdisplay

It is very nice that we can use the same installation for eventdisplay and vegas flavours (at this point only for pip; could do this like also in future for the conda environments).

Replaces also setup.py by the more modern pyproject.toml approach.

Other changes:

• updates README accordingly
• add github action workflow for deployment to pypi (at this point to TestPyPi, see here to see how nice it will look like)

[GernotMaier]

@matthew-w-lundy @deividribeiro - could you have a look why the vegas workflow is failing? I am not sure I understand the different step of docker generation and pip installation. Maybe it is a small thing only - having this PR included would really by nice!

[matthew-w-lundy]

Appears to be how in the docker image we are pip installing. Locally running the instructions work in a clean conda environment. I will see if I can modify the test to reasonably still pass with changes to the install.

[GernotMaier]

@matthew-w-lundy - any progress on this issue?

Being able to merge this PR would really be nice, as it simplifies installation.

[matthew-w-lundy]

Taking a look at this again today to try and resolve

[deividribeiro]

@GernotMaier I've uploaded a new vegas docker image to the workflow - can you resolve the conflict in this PR to trigger the actions so that we may be able to merge? The new docker image is updated to a python3 environment so the toml/pip issues should go away.

[GernotMaier]

@deividribeiro - the v2dl3-vegas-CI is failing. Can you have a look?

[deividribeiro]

Thanks! This issue looks fixable. It is missing some custom EAs that were part of the original docker image from Tyler, so I have to hunt down those files and place back in. But at least it appears to have passed the original issues with pypi. @tmcahill if you have those files or can point me to them - let me know and I will update.

[tmcahill]

Good to use image history if possible, I can probably get them if not. Will follow up with @deividribeiro on slack.

[deividribeiro]

wooo! done. This PR should now be ok.

Copilot reviewed 8 out of 15 changed files in this pull request and generated 1 suggestion.

Files not reviewed (7)

• utils/v2dl3-eventdisplay-docker/Dockerfile: Language not supported
• utils/v2dl3-vegas-docker/Dockerfile_vegas_ci: Language not supported
• utils/v2dl3-vegas-docker/Dockerfile_vegas_v2dl3_arm64: Language not supported
• utils/v2dl3-vegas-docker/Dockerfile_vegas_v2dl3_x64: Language not supported
• utils/vegas_docker_test_runs.sh: Language not supported
• setup.py: Evaluated as low risk
• .github/workflows/pypi.yml: Evaluated as low risk

Duplicate 'This' should be removed.

Suggested change

	> This This will replaced in near future by a pip install from PyPI.
	> This will be replaced in near future by a pip install from PyPI.