Updating PHSEN test data
Updates test data for PHSEN
adding the nutnr function as well as its associated unit and performance tests
data files and Matlab code
Adds first pass at secondary calibration support
Shortens the reference line
Merge pull request #180 from cwingard/phsen

CIDEVMI-1037 Edits PHWATER to use new test data
Merge pull request #182 from crisien/nit

Title: CIDEVMI-1109 Added NUTNR Function, Unit and Perf Tests as well as Matlab code
Merge pull request #184 from lukecampbell/interps

Adds first pass at secondary calibration support