WCSim PMT tilt implemented on a per-PMT basis

[S81D]

Very similar to PR #24 that was closed, and includes PMT tilting + LAPPD changes by Yue. Rather than applying a global tilt angle to the WB + WM PMTs, I have added an additional column in PMTPositions_Scan.txt where the user can edit the individual PMT tilt angles based on GoPro observations / other data analyses.

Right now all affected PMT tilt values are set to 53 degrees, which is consistent with what James and I have used in our CC and NC cross section analyses.

There are two limitations that should be added but unfortunately I don't have a ton of time to address them - I will try my best to fix them either in this PR or in another in the future:

• (see comment I opened below)
• Ideally we add a config option that gives the user the power to toggle the tilting on / off, especially as we progress to future tuning campaigns using comparisons of the FY26 fixed PMT data vs previous beam data with the tilting.
• I encountered the same issue as James with the git hash problem that caused the PR WCSim Tilt update - Version used for MC Production #24 to close, but have removed it in this PR. It would be great if someone could remedy this problem and validate this branch.

[S81D]

I kept the logic of only applying the angles to the affected PMT populations. This can probably be dropped however there's no reason to tilt the Top/Bottom/Hamamatsu PMTs.