Ordering of location group and location group stop data

[br648]

Checklist

• Appropriate branch selected (all PRs must first be merged to dev before they can be merged to master)
• Any modified or new methods or classes have helpful JavaDoc and code is thoroughly commented
• The description lists all applicable issues this PR seeks to resolve
• The description lists any configuration setting(s) that differ from the default settings
• All tests and CI builds passing

Description

The GTFS-lib for efficiency reads one row from a CSV file and writes that directly to the matching table. Unfortunately this prevents parsing/reordering of the data to suit DT. This update (besides creating a new util class for CSV reading) intercepts requests to read location groups or location group stops and reorders the data prior to it being read into the database.

This ultimately allows the database row id to represent the same location group id in location groups and location group stops. Yes, a lot of effort just to order some data, but hey.

[miles-grant-ibigroup]

All is working. Thanks so much