Add a note to check if we can implement the db_walk_tree + nmg_boolea…

…n logic as an rt_comb_tess callback. Not something we'd want to use for BoT evaluations since we don't want to have to stage BoTs through the NMG containers if we don't have to, but for old-school NMG output...

src/librt/primitives/table.cpp

@@ -1681,7 +1681,7 @@ const struct rt_functab OBJ[] = {
 	NULL, /* plot */
 	NULL, /* adaptive_plot */
 	NULL, /* vshot */
-	NULL, /* tess */
+	NULL, /* tess - TODO - is there any reason we can't do the treewalk evaluation as a rt_comb_tess? */
 	NULL, /* tnurb */
 	NULL, /* brep */
 	RTFUNCTAB_FUNC_IMPORT5_CAST(rt_comb_import5),