Guard against an OME tiff exception.

Some files raise a TypeError in the current parsing; the parsing should
be improved, but this at least allows graceful failure until that is
done.

sources/ometiff/large_image_source_ometiff/__init__.py

@@ -227,7 +227,7 @@ def _parseOMEInfo(self):  # noqa
                         self._omebase.get('Plane', self._omebase['TiffData']))):
                 raise TileSourceError(
                     'OME Tiff contains frames that contain multiple planes')
-        except (KeyError, ValueError, IndexError):
+        except (KeyError, ValueError, IndexError, TypeError):
             raise TileSourceError('OME Tiff does not contain an expected record')
 
     def getMetadata(self):