Update RSkittleBrewer.R

Added an option for smarties colours - a European sweet thing http://en.wikipedia.org/wiki/Smarties
Create plotSmarties
Merge pull request #1 from AndySouth/patch-1

Update RSkittleBrewer.R to add smarties
Merge pull request #2 from AndySouth/patch-2

Create plotSmarties
smarties color scheme now included!
bring pull request into local repo
move plotSmarties into R folder