Remove PHP 7.1 ports, upstream security support ended on 2019-12-01 :

2019-12-01 archivers/php71-bz2
2019-12-01 archivers/php71-phar
2019-12-01 archivers/php71-zip
2019-12-01 archivers/php71-zlib
2019-12-01 converters/php71-iconv
2019-12-01 converters/php71-mbstring
2019-12-01 converters/php71-recode
2019-12-01 databases/php71-dba
2019-12-01 databases/php71-interbase
2019-12-01 databases/php71-mysqli
2019-12-01 databases/php71-odbc
2019-12-01 databases/php71-pdo
2019-12-01 databases/php71-pdo_dblib

Update PHP 7.1 from 7.1.30 to 7.1.31

Changelog:

    SQLite:
        Upgraded to SQLite 3.28.0.
    EXIF:
        Fixed bug #78256 (heap-buffer-overflow on exif_process_user_comment).
(CVE-2019-11042)
        Fixed bug #78222 (heap-buffer-overflow on exif_scan_thumbnail).
(CVE-2019-11041)
    Phar:
        Fixed bug #77919 (Potential UAF in Phar RSHUTDOWN).

Changelog taken from: https://www.php.net/ChangeLog-7.php#7.1.31

MFH:		2019Q3

Bump PORTREVISION for ports depending on the canonical version of GCC
as defined in Mk/bsd.default-versions.mk which has moved from GCC 8.3
to GCC 9.1 under most circumstances now after revision 507371.

This includes ports
 - with USE_GCC=yes or USE_GCC=any,
 - with USES=fortran,
 - using Mk/bsd.octave.mk which in turn features USES=fortran, and
 - with USES=compiler specifying openmp, nestedfct, c11, c++0x, c++11-lang,
   c++11-lib, c++14-lang, c++17-lang, or gcc-c++11-lib
plus, everything INDEX-11 shows with a dependency on lang/gcc9 now.

PR:		238330

Update PHP 7.1 from 7.1.25 to 7.1.26

Changelog:

    Core:
        Fixed bug #77369 (memcpy with negative length via crafted DNS response).
    GD:
        Fixed bug #77269 (efree() on uninitialized Heap data in imagescale leads
to use-after-free).
        Fixed bug #77270 (imagecolormatch Out Of Bounds Write on Heap).
    IMAP:
        Fixed bug #77020 (null pointer dereference in imap_mail).
    Mbstring:
        Fixed bug #77370 (Buffer overflow on mb regex functions - fetch_token).
        Fixed bug #77371 (heap buffer overflow in mb regex functions -
compile_string_node).
        Fixed bug #77381 (heap buffer overflow in multibyte match_at).

Bump PORTREVISION for ports depending on the canonical version of GCC
defined via Mk/bsd.default-versions.mk which has moved from GCC 7.4 t
GCC 8.2 under most circumstances.

This includes ports
 - with USE_GCC=yes or USE_GCC=any,
 - with USES=fortran,
 - using Mk/bsd.octave.mk which in turn features USES=fortran, and
 - with USES=compiler specifying openmp, nestedfct, c11, c++0x, c++11-lang,
   c++11-lib, c++14-lang, c++17-lang, or gcc-c++11-lib
plus, as a double check, everything INDEX-11 showed depending on lang/gcc7.

PR:		231590

PHP 7.1 and PHP 7.2: add TEST_TARGET to all extensions

This enables "make test" in every extension and eases
the test of changes to PHP.

I did ignore PHP 7.0 intentionally since it only receives
security updates and will EOL at the end of the year. Therefore
no great amount of work is expected for 7.0.

Add PHP 7.1

Thanks to: mat, pi, ale, martin@waschbuesch.de and franco@opnsense.org