Polyhedron net for a pyramid, collected faces

git-svn-id: http://dev.geogebra.org/svn/trunk/geogebra@29386 23ce0884-8a58-47d3-bc5c-ddf1cd5b9f9e
missing file in last commit...

git-svn-id: http://dev.geogebra.org/svn/trunk/geogebra@29387 23ce0884-8a58-47d3-bc5c-ddf1cd5b9f9e