Add package.json
Add package.json

This is so someone can `npm install nbartlomeij/foggy` or owner/foggy.

Extremely useful if using npm +
[browserify](https://github.com/substack/node-browserify)

mookman288/foggy,mookman288/foggy,nbartlomiej/foggy,masterweb121/foggy,masterweb121/foggy