fix error handling in signaled commands, error gets info about different scoup instead of true error

more detaild error  print including python trace when more complex unknown error

reinplement drillcncjob

fix camlib problem with all  drills("all"  was already there) but it crashes on tools without points, when  no tools "all" is as default

add timeout to all helps  if  command is  signaled

tclCommands/__init__.py

@@ -1,10 +1,11 @@
 import pkgutil
 import sys
 
-# allowed command modules
+# allowed command modules (please append them alphabetically ordered)
 import tclCommands.TclCommandAddPolygon
 import tclCommands.TclCommandAddPolyline
 import tclCommands.TclCommandCncjob
+import tclCommands.TclCommandDrillcncjob
 import tclCommands.TclCommandExportGcode
 import tclCommands.TclCommandExteriors
 import tclCommands.TclCommandInteriors
@@ -19,7 +20,6 @@ for loader, name, is_pkg in pkgutil.walk_packages(__path__):
     module = loader.find_module(name).load_module(name)
     __all__.append(name)
 
-
 def register_all_commands(app, commands):
     """
     Static method which register all known commands.