Wine Gecko status

[Vincent Povirk (they/them)]

I've been working on the Python 3 aspect of this, and it finally
created a .msi package for x86 at least. My github import of
wine-gecko failed so I have no good way to share my work at the
moment. The diff is very large because I ran 2to3 on much of the
codebase.

I still need to test a clean build, try a win64 build, see if they
actually work, and probably do some comparisons of generated code.