Tool&Task header and footer objects

This program removes all compiled header and footer programs for all printer definitions. Since the source code remains untouched, these codelines are checked and recompiled when the headers or footers are opened again. Reason for this program are problems we currently (version 2.69) have with these structures and want to provide a possibility to recheck them with a changed version of Tool&Task. As soon as the problems are solved, this program will be removed.