Updated RequestChainable Interface and Trait

+ Added a new searchRequestChain()  method that will climb up the request chain searching for an object of a certain class
+ Added some test code for the new method in the TestRun.php file

src/TestRun.php

@@ -5,6 +5,7 @@ namespace Gitea;
 require 'vendor/autoload.php';
 
 use Gitea\Client;
+use Gitea\Model\Repository;
 
 print("Starting Script... \n");
 print("Creating Guzzle client \n");
@@ -65,6 +66,13 @@ if ($repository) {
             if ($debugChain) {
                 print("Chain ".$debugChain."\n");
             }
+            $foundObj = $branch->searchRequestChain(Repository::class);
+            if ($foundObj) {
+                print("Repository class found \n");
+                print("Type: ".get_class($foundObj)." \n");
+            } else{
+                print("Repository class NOT found \n");
+            }
             print("\n\n");
         }
         print("Total Branches: ".count($branches)."\n");