pgsql: Some RELKIND macro refactoring

Some RELKIND macro refactoring

Add more macros to group some RELKIND_* macros:

- RELKIND_HAS_PARTITIONS()
- RELKIND_HAS_TABLESPACE()
- RELKIND_HAS_TABLE_AM()

Reviewed-by: Michael Paquier <michael(at)paquier(dot)xyz>
Reviewed-by: Alvaro Herrera <alvherre(at)alvh(dot)no-ip(dot)org>
Discussion: https://www.postgresql.org/message-id/flat/a574c8f1-9c84-93ad-a9e5-65233d6fc00f%40enterprisedb.com

Branch
------
master

Details
-------
https://git.postgresql.org/pg/commitdiff/37b2764593c073ca61c2baebd7d85666e553928b

Modified Files
--------------
contrib/amcheck/verify_heapam.c | 4 +-
contrib/pg_surgery/heap_surgery.c | 4 +-
contrib/pg_visibility/pg_visibility.c | 4 +-
contrib/pgstattuple/pgstattuple.c | 17 ++--
src/backend/catalog/heap.c | 156 ++++++++++++---------------------
src/backend/catalog/index.c | 2 +-
src/backend/commands/indexcmds.c | 9 +-
src/backend/commands/tablecmds.c | 8 +-
src/backend/optimizer/util/plancat.c | 41 +++------
src/backend/storage/buffer/bufmgr.c | 43 ++++-----
src/backend/utils/adt/partitionfuncs.c | 7 +-
src/backend/utils/cache/relcache.c | 90 +++++++------------
src/bin/pg_dump/pg_dump.c | 17 +++-
src/include/catalog/pg_class.h | 25 ++++++
14 files changed, 173 insertions(+), 254 deletions(-)