When creating an object in the GUI, its label wasn't initialized. Added

infrastructure for hole objects. (Postscript and KiCad output are still 
missing, and so does sanity checking.)

- gui_tool.c (new_obj_unconnected): set obj->name to NULL
- added hole objects to tool bar, all the various GUI routines, the .fpd
  parser, and the .fpd dumper



git-svn-id: http://svn.openmoko.org/trunk/eda/fped@5939 99fdad57-331a-0410-800a-d7fa5415bdb3

fpd.l

@@ -104,6 +104,8 @@ SP	[\t ]*
 				  return TOK_PAD; }
 <INITIAL>"rpad"			{ BEGIN(NOKEYWORD);
 				  return TOK_RPAD; }
+<INITIAL>"hole"			{ BEGIN(NOKEYWORD);
+				  return TOK_HOLE; }
 <INITIAL>"rect"			{ BEGIN(NOKEYWORD);
 				  return TOK_RECT; }
 <INITIAL>"line"			{ BEGIN(NOKEYWORD);