Expose as a generic config provider and ZF component

Adds:

- `ConfigProvider`, which maps the service `ValidatorManager` to the new
  `ValidatorPluginManagerFactory`.
- `Module`, which maps the service `ValidatorManager` to the new
  `ValidatorPluginManagerFactory`, and adds zend-modulemanager
  `ServiceListener` specifications for providing validator configuration.

Author: weierophinney

composer.json

@@ -47,6 +47,10 @@
         "branch-alias": {
             "dev-master": "2.6-dev",
             "dev-develop": "2.7-dev"
+        },
+        "zf": {
+            "component": "Zend\\Validator",
+            "config-provider": "Zend\\Validator\\ConfigProvider"
         }
     },
     "autoload-dev": {

src/ConfigProvider.php

@@ -0,0 +1,37 @@
+<?php
+/**
+ * @link      http://github.com/zendframework/zend-validator for the canonical source repository
+ * @copyright Copyright (c) 2005-2016 Zend Technologies USA Inc. (http://www.zend.com)
+ * @license   http://framework.zend.com/license/new-bsd New BSD License
+ */
+
+namespace Zend\Validator;
+
+class ConfigProvider
+{
+    /**
+     * Return configuration for this component.
+     *
+     * @return array
+     */
+    public function __invoke()
+    {
+        return [
+            'dependencies' => $this->getDependencyConfig(),
+        ];
+    }
+
+    /**
+     * Return dependency mappings for this component.
+     *
+     * @return array
+     */
+    public function getDependencyConfig()
+    {
+        return [
+            'factories' => [
+                'ValidatorManager' => ValidatorPluginManagerFactory::class,
+            ],
+        ];
+    }
+}

src/Module.php

@@ -0,0 +1,42 @@
+<?php
+/**
+ * @link      http://github.com/zendframework/zend-validator for the canonical source repository
+ * @copyright Copyright (c) 2005-2016 Zend Technologies USA Inc. (http://www.zend.com)
+ * @license   http://framework.zend.com/license/new-bsd New BSD License
+ */
+
+namespace Zend\Validator;
+
+class Module
+{
+    /**
+     * Return default zend-validator configuration for zend-mvc applications.
+     */
+    public function getConfig()
+    {
+        $provider = new ConfigProvider();
+
+        return [
+            'service_manager' => $provider->getDependencyConfig(),
+        ];
+    }
+
+    /**
+     * Register a specification for the ValidatorManager with the ServiceListener.
+     *
+     * @param \Zend\ModuleManager\ModuleEvent
+     * @return void
+     */
+    public function init($event)
+    {
+        $container = $event->getParam('ServiceManager');
+        $serviceListener = $container->get('ServiceListener');
+
+        $serviceListener->addServiceManager(
+            'ValidatorManager',
+            'validators',
+            'Zend\ModuleManager\Feature\ValidatorProviderInterface',
+            'getValidatorConfig'
+        );
+    }
+}