bugfixes and feature enhancements in exportDRAWEXE

bugfix to Loft in exportDRAWEXE
added Extrusion
ability to clean shapes from teselation before export
support for Fillet in exportDRAWEXE
name shapes with restore command
remove trailing dot from decimals
include version information in output
allow to test if a suboject is supported
explode sections of loft and sweep and edges for fillet