#4084 FillingModel has all the major functionality and is applied to desktop.

git-svn-id: http://dev.geogebra.org/svn/trunk/geogebra@31872 23ce0884-8a58-47d3-bc5c-ddf1cd5b9f9e
#3882 StatisticCalculator changes, but still buggy!.

git-svn-id: http://dev.geogebra.org/svn/trunk/geogebra@31873 23ce0884-8a58-47d3-bc5c-ddf1cd5b9f9e
Shader : draw cursor

git-svn-id: http://dev.geogebra.org/svn/trunk/geogebra@31874 23ce0884-8a58-47d3-bc5c-ddf1cd5b9f9e