new EMF+ Parser: Implementation of EmfPlusRecordTypeDrawDriverString

The Implementation follows closely EmfPlusRecordTypeDrawString.
For each set of characters with the same PosY a TextSimplePortionPrimitive2D
is created.

Change-Id: I04e4d11dc3c4e1e5bd16aefa8e7f00556aa5282b
Reviewed-on: https://gerrit.libreoffice.org/40716Tested-by: Jenkins <ci@libreoffice.org>
Reviewed-by: Thorsten Behrens <Thorsten.Behrens@CIB.de>

drawinglayer/source/tools/emfphelperdata.hxx

@@ -25,6 +25,7 @@
 #include <tools/stream.hxx>
 #include <basegfx/point/b2dpoint.hxx>
 #include <basegfx/vector/b2dsize.hxx>
+#include <basegfx/color/bcolor.hxx>
 
 // predefines
 class SvStream;
@@ -232,6 +233,9 @@ namespace emfplushelper
         void EMFPPlusDrawPolygon(const ::basegfx::B2DPolyPolygon& polygon, sal_uInt32 penIndex);
         void EMFPPlusFillPolygon(const ::basegfx::B2DPolyPolygon& polygon, bool isColor, sal_uInt32 brushIndexOrColor);
 
+        // helper functions
+        ::basegfx::BColor EMFPGetBrushColorOrARGBColor(sal_uInt16 flags, sal_uInt32 brushIndexOrColor);
+
     public:
         EmfPlusHelperData(
             SvMemoryStream& rMS,