pgsql: Windows: Make pg_ctl reliably detect service status

Windows: Make pg_ctl reliably detect service status

pg_ctl is using isatty() to verify whether the process is running in a
terminal, and if not it sends its output to Windows' Event Log ... which
does the wrong thing when the output has been redirected to a pipe, as
reported in bug #13592.

To fix, make pg_ctl use the code we already have to detect service-ness:
in the master branch, move src/backend/port/win32/security.c to src/port
(with suitable tweaks so that it runs properly in backend and frontend
environments); pg_ctl already has access to pgport so it Just Works.  In
older branches, that's likely to cause trouble, so instead duplicate the
required code in pg_ctl.c.

Author: Michael Paquier
Bug report and diagnosis: Egon Kocjan
Backpatch: all supported branches

Branch
------
master

Details
-------
http://git.postgresql.org/pg/commitdiff/a967613911f7ef7b6387b9e8718f0ab8f0c4d9c8

Modified Files
--------------
src/backend/port/win32/Makefile   |    2 +-
src/backend/port/win32/security.c |  248 --------------------------------
src/bin/pg_ctl/pg_ctl.c           |    2 +-
src/include/port/win32.h          |    7 +-
src/port/win32security.c          |  282 +++++++++++++++++++++++++++++++++++++
src/tools/msvc/Mkvcbuild.pm       |    2 +-
6 files changed, 289 insertions(+), 254 deletions(-)