Add composer package

php/ng/composer.sls

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

php/ng/map.jinja

@@ -379,6 +379,7 @@
                 'apcu': 'php-pecl-apcu',
                 'cgi': 'php-cgi',
                 'cli': 'php-cli',
+                'composer': 'composer',
                 'oauth': 'php-oauth',
                 'curl': ['php-common', 'curl'],
                 'fpm': 'php-fpm',