Added easy-pie-chart from versions 1.0.0 to 2.1.4
Added package.json to library.

Forgot to add at first, hopefully this is an acceptable package.json for
a first timer.
Changed name property

npm-test failed with name.
Merge pull request #2629 from TechKat/master

Added easy-pie-chart from versions 1.0.0 to 2.1.4