Fix glyph width calculation in HarfBuzz
Fix glyph width calculation in HarfBuzz

Make sure everything is using 16.16 fixed point values consistently.

Change-Id: Icdcd94775d3860d57bb446a3f237c31e35e0710a
Reviewed-on: https://gerrit.libreoffice.org/3573
Reviewed-by: Fridrich Strba <cc5239b4c84e795cbd430bca0f77cadba002516f@documentfoundation.org>
Tested-by: Fridrich Strba <cc5239b4c84e795cbd430bca0f77cadba002516f@documentfoundation.org>

JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core