batch 1 for updates to LST integration in cms-sw

[VourMa]

accumulated list of features in the batch:

• Initial commit to update directory for LST data files. Maybe it makes sense to merge this quickly to see if we can get the bot tests running successfully.
• fixes in standalone from SegmentLinking/cmssw#33 for a couple of things on the standalone version. It fixes the setup script and makefiles so that it can be built in standalone mode without any extra steps. It also fixes an issue with the ROOT file that the standalone version creates since it saves the git logs, but the logs of the CMSSW repo are too large now, so they are now truncated to the 100 latest commits.
• Remove outdated files
• fix loading of lstModulesDevESProducer by attaching it to an unused task by default to get the framework to skip it (not construct) when LST is not used. This fixes unit tests failing with Unable to find plugin 'LSTModulesDevESProducer@alpaka'

[slava77]

cms-data should be in the 2300 IB today.

While I did not get a response from Matti on the fix proposed in #35 , the comments in the cms-sw PR were in line with this solution be more preferred than the others (accelerators_cff or makeProcessModifier).

So, I wanted to propose to add #35 to this "batch 1".

We can already merge this "batch 1" into the cms-sw PR some time as early as this evening CA time.

Anything else we expect to have ready by then or if need to wait, by the meeting time tomorrow?

[VourMa]

So, I wanted to propose to add https://github.com/SegmentLinking/cmssw/pull/35 to this "batch 1".

Fine by me.

We can already merge this "batch 1" into the cms-sw PR some time as early as this evening CA time.

Fine by me as well.

The only additional updates I can push right now is the deletion of the (outdated) test scripts and the (outdated) README. Other than that, I wanted to deal with some of the first comments but I am not sure I will manage to do it today/early tomorrow, and they are not super important for now. All in all, give me a couple of hours to clean up a couple of files and then you can merge from my side. I can ping you when I am done.

[VourMa]

@slava77 I am done for this batch.