Adds a custom dev server based on @web/dev-server, along with a Koa router middleware that handles the /catalog URL space.
Right now there's a simple hard-coded response wired in at /catalog/element/:path that parses the :path as a packageName/elementName pair and shows them on the page.
Adds a custom dev server based on
@web/dev-server, along with a Koa router middleware that handles the/catalogURL space.Right now there's a simple hard-coded response wired in at
/catalog/element/:paththat parses the:pathas apackageName/elementNamepair and shows them on the page.Part of https://github.com/webcomponents/webcomponents.org/issues/1346