Add state file for installing the pecl_http extension.

php/ng/http.sls

@@ -0,0 +1,2 @@
+{% set state = 'http' %}
+{% include "php/ng/installed.jinja" %}

php/ng/map.jinja

@@ -1859,6 +1859,7 @@
                     'geoip': 'php-pecl-geoip',
                     'geshi': 'php-geshi',
                     'gettext': 'php-php-gettext',
+                    'http': 'php-pecl-http',
                     'imagick': 'php-pecl-imagick',
                     'imap': 'php-imap',
                     'intl': 'php-intl',