Fix up plugin naming.

src/Plugin.php

@@ -8,7 +8,7 @@ use Cake\Routing\RouteBuilder;
 /**
  * Plugin for Tools
  */
-class Plugin extends BasePlugin {
+class ToolsPlugin extends BasePlugin {
 
 	/**
 	 * @var bool

tests/bootstrap.php

@@ -13,7 +13,7 @@ use Cake\TestSuite\Fixture\SchemaLoader;
 use Cake\Utility\Security;
 use Shim\Filesystem\Folder;
 use TestApp\Controller\AppController;
-use Tools\Plugin as ToolsPlugin;
+use Tools\ToolsPlugin;
 use function Cake\Core\env;
 
 if (!defined('DS')) {