pgsql: Split out rmgr rm_desc functions into their own files

Split out rmgr rm_desc functions into their own files

This is necessary (but not sufficient) to have them compilable outside
of a backend environment.

Branch
------
master

Details
-------
http://git.postgresql.org/pg/commitdiff/1577b46b7c81e490cf5c8f0e90d0e5d0c09b5414

Modified Files
--------------
src/backend/access/Makefile | 2 +-
src/backend/access/gin/ginxlog.c | 63 ---------
src/backend/access/gist/gistxlog.c | 49 -------
src/backend/access/hash/hash.c | 5 -
src/backend/access/heap/heapam.c | 148 ----------------------
src/backend/access/nbtree/nbtxlog.c | 145 ---------------------
src/backend/access/rmgrdesc/Makefile | 15 +++
src/backend/access/rmgrdesc/clogdesc.c | 41 ++++++
src/backend/access/rmgrdesc/dbasedesc.c | 43 +++++++
src/backend/access/rmgrdesc/gindesc.c | 83 ++++++++++++
src/backend/access/rmgrdesc/gistdesc.c | 68 ++++++++++
src/backend/access/rmgrdesc/hashdesc.c | 22 ++++
src/backend/access/rmgrdesc/heapdesc.c | 165 ++++++++++++++++++++++++
src/backend/access/rmgrdesc/mxactdesc.c | 51 ++++++++
src/backend/access/rmgrdesc/nbtdesc.c | 162 ++++++++++++++++++++++++
src/backend/access/rmgrdesc/relmapdesc.c | 33 +++++
src/backend/access/rmgrdesc/seqdesc.c | 36 ++++++
src/backend/access/rmgrdesc/smgrdesc.c | 45 +++++++
src/backend/access/rmgrdesc/spgdesc.c | 89 +++++++++++++
src/backend/access/rmgrdesc/standbydesc.c | 65 ++++++++++
src/backend/access/rmgrdesc/tblspcdesc.c | 40 ++++++
src/backend/access/rmgrdesc/xactdesc.c | 194 +++++++++++++++++++++++++++++
src/backend/access/rmgrdesc/xlogdesc.c | 120 ++++++++++++++++++
src/backend/access/spgist/spgvacuum.c | 2 +-
src/backend/access/spgist/spgxlog.c | 72 -----------
src/backend/access/transam/clog.c | 23 ----
src/backend/access/transam/multixact.c | 33 -----
src/backend/access/transam/rmgr.c | 2 +-
src/backend/access/transam/xact.c | 173 -------------------------
src/backend/access/transam/xlog.c | 118 +-----------------
src/backend/catalog/heap.c | 1 +
src/backend/catalog/storage.c | 51 +--------
src/backend/commands/dbcommands.c | 24 ----
src/backend/commands/sequence.c | 18 ---
src/backend/commands/tablespace.c | 22 ----
src/backend/storage/ipc/standby.c | 48 -------
src/backend/utils/cache/relmapper.c | 16 ---
src/include/access/xlog_internal.h | 19 +++
src/include/catalog/storage.h | 6 -
src/include/catalog/storage_xlog.h | 49 +++++++
40 files changed, 1346 insertions(+), 1015 deletions(-)