Increase stringMax

Also use better error management in Container.Parse
Initial Drawable Dictionary (XDD) support
Initial support for Frag type drawables.

I think there's probably more drawables inside frag files than the one
I'm extracting. Need to map these out properly.
Merge branch 'go_rewrite' of https://github.com/tgascoigne/xdr2obj into go_rewrite

Conflicts:
	resource/resource.go