IN PROGRESS - issue SPAGOBI-1570:Added the designer for table widget

git-svn-id: svn://svn.forge.objectweb.org/svnroot/spagobi@21807 99afaf0d-6903-0410-885a-c66a8bbb5f81
IN PROGRESS - issue SPAGOBI-1570: Moved GenericDropTarget class to widgets package

git-svn-id: svn://svn.forge.objectweb.org/svnroot/spagobi@21808 99afaf0d-6903-0410-885a-c66a8bbb5f81