Adding svgToPDF.js

Hi,

Leveraging the work done by CBiX (https://github.com/CBiX/svgToPdf.js). We added functionality for a simple svg plugin. It takes in circles, rectangles, ellipses, lines, and paths and renders them using your library.

We also used underscore and jquery for this library plugin. Let me know if this is an issue, we can adjust but used those libraries anyways for our applications.

Thanks for all the hard work!

Best,
Aaron and Bo