A utility library to convert SVG shapes to paths and reorder paths by proximity

For usage, see test.

TODO

• Handle masks (now ignored)
• Handle viewboxes (now mostly ignored), including: nested svg elements, symbol and viewBox after certain transforms.
  • Done: nested svg (not through use)
  • Missing: nested SVGs (use references), symbol
  • Clipping output based on viewBox visible area
• Treat illegal paths non-fatally (as per § F.2 in SVG 1.1 and § 9.5.4 in SVG 2)
• Refactor code to allow using certain parts selectively
• Add more strategies for proximity
• Improve Node.js packing (add package.json and keep only index.js and index.d.ts)