Add PHP 7.2 RC6

Notable changes:
- mcrypt module was removed
- sodium module was added
- sybase_ct artifacts removed

Also many PECL ports will not work with this version
since some files got renamed.

Reviewed by:           mat, ale, Rainer Duffner <rainer@ultra-secure.de>
Differential Revision: https://reviews.freebsd.org/D12980

databases/php72-pdo_pgsql/Makefile

@@ -0,0 +1,9 @@
+# $FreeBSD$
+
+CATEGORIES=	databases
+
+MASTERDIR=	${.CURDIR}/../../lang/php72
+
+PKGNAMESUFFIX=	-pdo_pgsql
+
+.include "${MASTERDIR}/Makefile"