SensorArray class

[LinnierGames]

closes #4

Okay, so kinda just pulled this out of my ass and not sure if it's set up right to work with the project.

Additions

• SensorArray constructor takes an array of pin values from left to right, or -1 to 1 adding to a SensorsArray list. This list index from head, but inserts new nodes from the tail. Thus, you index from 0 to the last node, which is the tail.
• Sensor node each holds the pin number, position in relation to -1 to 1, and the instance of the sensor instance (which is left in comments)

[blhough]

FYI this is a linked list not an array.
I think an array implementation would be more efficient and simpler

[LinnierGames]

:P true I guess i could have made a struct that a vector keeps track of in case we wanted to store more than just a sensor object