Added UV sensor to LEO-OWS

A SU-100-SS-L-20 was added to the LEO-OWS.

*Found that 15 minute moving average for the HMP60, SQ110, LP02, was incorrect and has been fixed.
Unsure if 15 minute moving averaged data before 9/26/2018 12:15pm is correct.

Irrigation and seepage flowrate changed to incremental

The volume calculations for the irrigation (EX81) and seepage (Novalynx,PE102) have been update to show the change in volume between each logging time period (15 minutes) instead of cumulative volume.

Data from 9/6/2018 1:45pm onward reflect these changes.

Expect some data interruption on 9/5/2018 and 9/6/2018.

**Fixed irrigation incremental logging on 9/11/2018 11:00am. Please disregard data recorded from 9/11/2018 8am to 11am.

***EX81 incremental liters/sec can also be found on the Labview DSM.