#3882 extracted common parameter object

git-svn-id: http://dev.geogebra.org/svn/trunk/geogebra@30638 23ce0884-8a58-47d3-bc5c-ddf1cd5b9f9e
#3882 renamed.

git-svn-id: http://dev.geogebra.org/svn/trunk/geogebra@30639 23ce0884-8a58-47d3-bc5c-ddf1cd5b9f9e