add:新增服务缓存，提高性能

extend/catcher/CatchAdmin.php

@@ -377,7 +377,7 @@ class CatchAdmin
     public static function cacheServices()
     {
         return file_put_contents(self::getCacheServicesFile(), "<?php\r\n return "
-            . var_export(self::getModuleServices(), true) . ';');
+            . var_export(self::getEnabledService(), true) . ';');
     }
 
     /**
@@ -425,7 +425,7 @@ class CatchAdmin
      * @time 2019年11月30日
      * @return mixed
      */
-    protected static function getCacheServicesFile()
+    public static function getCacheServicesFile()
     {
         return self::cacheDirectory() . 'services.php';
     }

extend/catcher/CatchAdminService.php

@@ -127,7 +127,9 @@ class CatchAdminService extends Service
      */
     protected function registerServices()
     {
-        $services = CatchAdmin::getEnabledService();
+        $services = file_exists(CatchAdmin::getCacheServicesFile()) ?
+            include CatchAdmin::getCacheServicesFile() :
+            CatchAdmin::getEnabledService();
 
         foreach ($services as $service) {
             if (class_exists($service)) {