Draft: new PathTwistedArray object

It takes a `Shape` and replicates it around a path, while at the
same time adding a rotation to each copy. This can be used to create
a twisted "ribcage" from a frame-like object, which can be used
in a more complicated `Shape`, for example, a tunnel or bridge
object.

src/Mod/Draft/draftobjects/patharray.py

@@ -70,6 +70,7 @@ import lazy_loader.lazy_loader as lz
 from draftutils.messages import _msg, _wrn, _err
 from draftutils.translate import _tr
 
+from draftobjects.base import DraftObject
 from draftobjects.draftlink import DraftLink
 
 # Delay import of module until first use because it is heavy