Added support for HP Bubble Display

Created package DIL12 and created package variant of component
7-SEGMENT-4DIGIT-COUNTER using DIL12.

provides package for HP Bubble Display
https://www.sparkfun.com/products/12710

I created a DIL12 package (this time from scratch) and added it as a package variant to the 7-SEGMENT-4DIGIT-COUNTER display in SparkFun-Displays.lbr. This supports the HP Bubble Display from the new product post on 2014.03.07.