Fix tokenizing of geometric operators starting with ?

[youdie006]

The JSON/vector operator group in Beautify.pm matches a bare ? and ?| before the geometric group, so the geometric operators ?#, ?-, ?-| and ?|| are split:

SELECT * FROM lseg_tbl l1, lseg_tbl l2 WHERE l1.s ?# l2.s;
-- formatted: l1.s ? # l2.s

and ?|| comes out as ?| |, which PostgreSQL parses as a different operator. This removes those two alternatives from the JSON group so the existing geometric entries match; a bare ? still reaches the generic operator group. Added t/test-files/ex88.sql and updated the geometry.sql regression golden, which had recorded the split operators. Checked with PostgreSQL's parser (pglast) over its own regression SQL files: 11 statements that changed meaning are fixed and none are broken. One visible change: a placeholder written ?-1 is now kept as ?- 1, which is how PostgreSQL reads it. prove -l t/ and t/regress_test.pl pass.

Written with AI assistance (Claude); I have reviewed the change.