need algorithm for calculating second pickup for bi-annual services

[courtney-rosenthal]

The database has a single pickup date for bulky and brush pickups, but they are bi-annual (twice a year) services.

We need the algorithm to calculate the second service date for a location.

[courtney-rosenthal]

At this time, I've implemented a "strawman algorithm" to calculate the second service date. We still need to confirm with ARR how to do this calculation.