U+2185..U+2188.
(is_property_default_ignorable_code_point): Don't include characters
of category Cc or Cs and not-a-characters.
+ (get_lbp): Assume REVISION_22. Special handling of U+0609, U+060A,
+ U+0D79, U+109E, U+109F, U+A60C.
* lib/unictype/bidi_of.h: Regenerated.
* lib/unictype/blocks.h: Regenerated.
* lib/unictype/categ_C.h: Regenerated.