OrthogonalVector[2x+y-3z+1=0] returns (2,1,-3) (not normalized)

git-svn-id: http://dev.geogebra.org/svn/trunk/geogebra@36156 23ce0884-8a58-47d3-bc5c-ddf1cd5b9f9e
Check if algo is AnglePoint 2D or 3D

git-svn-id: http://dev.geogebra.org/svn/trunk/geogebra@36157 23ce0884-8a58-47d3-bc5c-ddf1cd5b9f9e
5.0.2.0

git-svn-id: http://dev.geogebra.org/svn/trunk/geogebra@36161 23ce0884-8a58-47d3-bc5c-ddf1cd5b9f9e