bindings: the author a record's own text can offer

book-pipeline had its own copy of bibclean's author recovery. Bound on all
four surfaces so it can stop.

Checked against that Python over all 5,385 books in the library: 5,375
identical. On the other ten the Python had taken a translator, an illustrator
or the publisher off a copyright line — Sally-Ann Spencer for *The Dwarves*,
Thomas Nelson for a table of contents, C. S. Lewis for a book about Tolkien —
and bibclean either finds the real author in the Library of Congress block or
says nothing. Every one of the ten was read by hand.

crates/bindings/python/catena/__init__.py

@@ -28,6 +28,7 @@ from ._catena import (
     segment_cues,
     series_of,
     split_collection,
+    suggest_author,
 )
 
 __all__ = [
@@ -48,4 +49,5 @@ __all__ = [
     "segment_cues",
     "series_of",
     "split_collection",
+    "suggest_author",
 ]