<sberg> vmiklos, any idea how useful the definition of enum MSO_ShadeType in
include/svx/msdffdef.hxx is?  Neither the type nor any of its enumerators are
used anywhere, so it's rather glorious documentation of some (presumed) MS API

vmiklos> sberg: doesn't look too useful, i guess the context is color shading in
binary MSO files, but then that's handled in
filter/source/msfilter/msdffimp.cxx:1069, and the ShadeColor struct already
describes what is in the spec.

Change-Id: Iae4c12828179173368ff17128bcaa80edaa3db23