LAPPD offset Fitting script for EBV2

[fengyvoid]

Describe your changes

Add the LAPPD offset fit script for EBV2, part of the EBV2 workflow.
Updated from using mean time deviation between LAPPD beamgate and undelayed beam trigger to the quality factor from the previous version in Jan, details can be found in https://annie-docdb.fnal.gov/cgi-bin/sso/ShowDocument?docid=6132

Checklist before submitting your PR

• [ x] This PR implements a single change (one new/modified Tool, or a set of changes to implement one new/modified feature)
• [ x] This PR alters the minimum number of files to affect this change
• [x ] If this PR includes a new Tool, a README and minimal demonstration ToolChain is provided
• [x ] If a new Tool/ToolChain requires model or configuration files, their paths are not hard-coded, and means of generating those files is described in the readme, with examples provided on /pnfs/annie/persistent
• [x ] For every new usage, there is a reason the data must be on the heap
• [x ] For every new there is a delete, unless I explicitly know why (e.g. ROOT or a BoostStore takes ownership)

Additional Material

Attach any validation or demonstration files here. You may also link to relavant docdb articles.
https://annie-docdb.fnal.gov/cgi-bin/sso/ShowDocument?docid=6132

[fengyvoid]

btw, exactly same version from branch https://github.com/fengyvoid/ToolAnalysis/tree/FreezeForEBV2_v1.0

[S81D]

As was the case with the muon fitter script and James' experience, since this is not a standalone tool let's instead store this script somewhere in persistent for it to be used in the event building. I will close this PR once we have a path provided in persistent.