Refactor gui - Githubissues

This PR fixes all bugs found in the GUI, adds the water level frame feature, and is refactored.

All current actuator and sensor values update simultaneously with the animated graph.
X ticks of the graph can be varied despite being the DateTime data type.
The water subsystem now has an extra water level frame to show % the water level on a scale.
GUI code is now refactored to have the option and profile view.
Implemented the message manager to output appropriate suggestions corresponding to the current sensor status.
Constants class implemented.

Willmish / comp0016-farmbeats