Replacing integer-to-integer mapped tokens with
fast Tokens direcly for branching.
Adding a macro XML_ELEMENT that combines namespace
and element tokens.

Change-Id: I8701c8af9607392843460fe726bffb6556cf9b33
Reviewed-on: https://gerrit.libreoffice.org/39275Tested-by: Jenkins <ci@libreoffice.org>
Reviewed-by: Michael Meeks <michael.meeks@collabora.com>