[3.13] gh-80667: Fix lookup for Tangut ideographs in unicodedata (GH-144789) (GH-144871) (GH-144875)

(cherry picked from commit 8b7b5a994602824a5e41cf2516691212fcdfa25e)
(cherry picked from commit bcabbd02f6fb98ee143fc9f3e47e71ded3b7747f)

Co-authored-by: Serhiy Storchaka <storchaka@gmail.com>
Co-authored-by: Pierre Le Marre <dev@wismill.eu>