artifact tracking again

Redo the recent artifact creation stuff by replacing several nearly
identical routines with one more general one.  Also adds a tracking
bit for one or two more creation methods.  That changed artiexist[]
from an array of structs holding 8 or less bits to one holding 9, so
bump EDITLEVEL in case the total size changed.

src/bones.c

@@ -70,8 +70,8 @@ resetobjs(struct obj *ochain, boolean restore)
                     if (has_oname(otmp))
                         free_oname(otmp);
                 } else {
-                    artifact_exists(otmp, safe_oname(otmp), TRUE, FALSE);
-                    (void) artifact_bones(otmp, TRUE);
+                    artifact_exists(otmp, safe_oname(otmp), TRUE,
+                                    ONAME_BONES);
                 }
             } else if (has_oname(otmp)) {
                 sanitize_name(ONAME(otmp));