pgsql: Add missing commutators for distance operators

Add missing commutators for distance operators

Some of <-> operators between geometric types have their commutators missed.
This commit adds them. The motivation is upcoming kNN support for some of those
operators.

Discussion: https://postgr.es/m/f71ba19d-d989-63b6-f04a-abf02ad9345d%40postgrespro.ru
Author: Nikita Glukhov
Reviewed-by: Tom Lane, Alexander Korotkov

Branch
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master

Details
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https://git.postgresql.org/pg/commitdiff/6254c55f815623bb74e2cf27562437dc3b2aa2c8

Modified Files
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src/backend/utils/adt/geo_ops.c | 136 ++++-
src/include/catalog/pg_operator.dat | 42 +-
src/include/catalog/pg_proc.dat | 25 +
src/test/regress/expected/geometry.out | 986 +++++++++++++++++----------------
src/test/regress/sql/geometry.sql | 15 +-
5 files changed, 687 insertions(+), 517 deletions(-)