Removed LegacyIO dependency from PlanarFigure module.
Removed LegacyIO dependency from IpPicSupportIO.
Removed dangling includes to deprecated header files.
Replaced PointSetReader/Writer by IOUtil::LoadPointSet/Save.
Replaced STLFileReader usages with IOUtil::LoadSurface calls.
Replaced DataNodeFactory usage with IOUtil::Load call.
Merge branch 'master' into bug-14866-RemoveLegacyIODependencies

Conflicts:
	Modules/PlanarFigure/CMakeLists.txt
Merge branch 'master' into bug-14866-RemoveLegacyIODependencies

Conflicts:
	Modules/PlanarFigure/CMakeLists.txt
Merge branch 'bug-14866-RemoveLegacyIODependencies' of mitk.org:MITK into bug-14866-RemoveLegacyIODependencies
Merge branch 'bug-14866-RemoveLegacyIODependencies'