get water samples method added

[AaronDsilva97]

Description

Added getWaterSamples to supplement existing getWater method. This is needed in order to get the value of consumed water in litres for a specific time period. Current implementation supports time frame of just a day.

Type of change

• [x] New feature (non-breaking change which adds functionality)
• [x] This change requires a documentation update

Checklist:

• [x] My code follows the style guidelines of this project
• [x] I have performed a self-review of my own code
• [x] I have made corresponding changes to the documentation
• [x] I have checked my code and corrected any misspellings