4 new blocks - IR remote control

Created by: EricSKennedy

I had to re-fork in order to be able to merge. It created a few issues I believe I have solved.

This commit provides four new blocks: Switch Case - Similar in structure to the if-then-else mutator block. IR Serial Monitor - used to read the IR codes off a TV/DVD IR remote IR Decode Blink - Basic program for testing an IR code IR Get - can be used with the case statement to drive robots. The IR blocks were build with help from this: http://www.instructables.com/id/The-Easiest-Way-to-Use-Any-IR-Remote-with-Ardiuno/?ALLSTEPS

Included also is a picture in examples, and a copy of the libraries needed