support full-day enddate #62
Description
Especially for daily averages, when someone asks for an enddate, they expect to see the values for the full 24 hours of that day.
MazamaCoreUtils::dateRange() supports this and they way that startdate and enddate are interpreted should be evaluated in every function.
Additionally, there is a partially supported includeFullEnddate that should be evaluated. Is it still needed? Should it supported?
This task needs careful evaluation of all the pros and cons before any coding begins.