Change tracking timing precision, fixes to DQM histo names

[tvami]

I am updating ldmx-sw, here are the details.

What are the issues that this addresses?

Resolves #1402

Check List

• I successfully compiled ldmx-sw with my developments
• I ran my developments and the following shows that they are successful.

[tomeichlersmith]

I think this looks good, the reason I'm holding approval is just because this changes the gold in two ways (in the logs and by adding the chi2/ndf histogram to the list of histograms that the current validation comparison tool can handle). Is there anything else we want to merge before changing the gold?

[tvami]

My take is that we can merge this, but not yet make a new patch release / gold. The changes introduced in this PR are exactly taking care of the things that don't work in the comparison, i.e. every validation now fails with (1) not finding the /ndf plots and (2) due to the instability of the tracking timing measurement. By merging this every validation will continuingly fail at these two points, but for a different reason. i.e. it's like a status que until we cut new gold (for which that I agree that it's too early)

[tomeichlersmith]

I am convinced by your reasoning 👍

[tvami]

I pushed one more cosmetics change in 4af0355
I thought this was not worth another issue / PR

[tvami]

@bloodyyugo are you ok with me changing the tracking DQM histo names? I think this is the only way to have the CI script understand that it's not a directory.

[bloodyyugo]

These all look fine to me.

[bloodyyugo]

Yeah, I was going to change this but you got to it first. Thanks

@bloodyyugo are you ok with me changing the tracking DQM histo names? I think this is the only way to have the CI script understand that it's not a directory.