We have this nice structure that contains (almost) all the information
we need, so pass it around instead of passing separate fragments of said
information.

The ultimate is to kill the horrible sal_GlyphId hack if encoding
various bits of information in the higher bits of a 32-bit integer.

Change-Id: Ie496bb4c2932157527a388e2a94e46bf0a325a70
Reviewed-on: https://gerrit.libreoffice.org/31781Tested-by: Jenkins <ci@libreoffice.org>
Reviewed-by: Khaled Hosny <khaledhosny@eglug.org>