First implementation of plugin architecture

- Split route processing into stages: metadata, bodyParameters, queryParameters, responses
- Provide tool to fetch route docblocks (with caching)

config/apidoc.php

@@ -1,5 +1,7 @@
 <?php
 
+use Mpociot\ApiDoc\Strategies\Metadata\GetFromDocBlocks;
+
 return [
 
     /*
@@ -179,6 +181,21 @@ return [
         ],
     ],
 
+    'strategies' => [
+        'metadata' => [
+            GetFromDocBlocks::class,
+        ],
+        'bodyParameters' => [
+
+        ],
+        'queryParameters' => [
+
+        ],
+        'responses' => [
+
+        ],
+    ],
+
     /*
      * Custom logo path. The logo will be copied from this location
      * during the generate process. Set this to false to use the default logo.