Added DIL12 package to 7-SEGMENT-4DIGIT-COUNTER

provides package for HP Bubble Display
https://www.sparkfun.com/products/12710

I created a DIL12 package (starting from SparkFun DIL14-Kit) 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 Friday's (3/7/14) new product post.

  - Chip