created updateEncoders() and updated 6Bar code

updateEncoder() allows the specified encoder, passed in as a parameter,
to have its value displayed to the LCD. Added second encoder logic to
increase accuracy of 6Bar
Modified autonConveyor() for encoders

changed function so that conveyor moves by degrees rather than by time
Pseudo-Code for new autonomous

triStack() stacks 3 skyrise pieces and caps them with a cube