Implemented gist and pastebin loaders

src/Hotfix/Loader/GistLoader.php

@@ -9,5 +9,10 @@ class GistLoader implements LoaderInterface
         if (!preg_match('/^gist\:/i', $fix)) {
             return false;
         }
+
+        $url = "https://gist.githubusercontent.com/" . substr($fix, 5) . "/raw";
+
+        return file_get_contents($url);
+
     }
 }

src/Hotfix/Loader/PastebinLoader.php

@@ -9,5 +9,15 @@ class PastebinLoader implements LoaderInterface
         if (!preg_match('/^pastebin\:/i', $fix)) {
             return false;
         }
+
+        $pasteId = substr($fix, 9);
+
+        $url = "https://pastebin.com/raw/{$pasteId}";
+        $body = file_get_contents($url);
+
+        $body = str_replace("\r\n", "\n", $body);
+
+        return $body;
+
     }
 }