xml: add support for autocompletion based on DTD
@chergert
Submitted by Christian Hergert Link to original bug (#763074)
Description
Right now, the xml/html autocompletion has hard coded completion items based on some data scraped from w3c.
Ideally, we would feed this data from a DTD or similar. Additionally, this should work with a custom GObject Inrospection provider so that the .ui gtkbuilder files can complete property names based the current <object>
element.