PHP: Support newer format string directives.
Reported by José Luis Jiménez Fernández <jjimenez@interhost.com> in
<https://lists.gnu.org/archive/html/bug-gettext/2023-05/msg00037.html>.
* gettext-tools/src/format-php.c (format_parse): Treat E, F, g, G, h, H like
e, f.
* gettext-tools/tests/format-php-1: Test the %E, %F, %g, %G, %h, %H directives.
* gettext-tools/tests/format-php-2: Update type compatibility tests.
* NEWS: Mention the change.
