Split the postgresql ports into a server and a client part.

All ports depending on postgresql shall use the USE_PGSQL=yes knob
defined in Mk/bsd.ports.mk. Bumping portrevisions where needed.

PR:		75344
Approved by:	portmgr@ (kris), ade & sean (mentors)

databases/courier-authlib-pgsql/Makefile

@@ -86,8 +86,7 @@ CONFIGURE_ARGS+=--with-authmysql \
 CONFIGURE_ARGS+=--without-authpgsql
 PLIST_SUB+=	PGSQLFLAG="@comment "
 .else
-POSTGRESQL_PORT?=	databases/postgresql7
-LIB_DEPENDS+=	pq.3:${PORTSDIR}/${POSTGRESQL_PORT}
+USE_PGSQL=	YES
 PLIST_SUB+=	PGSQLFLAG=""
 .endif