Added vendor/ directory for Composer's installed files

vendor/alexgarrett/violin/src/Rules/IntRule.php

@@ -0,0 +1,23 @@
+<?php
+
+namespace Violin\Rules;
+
+use Violin\Contracts\RuleContract;
+
+class IntRule implements RuleContract
+{
+    public function run($value, $input, $args)
+    {
+        return is_numeric($value) && (int)$value == $value;
+    }
+
+    public function error()
+    {
+        return '{field} must be a number.';
+    }
+
+    public function canSkip()
+    {
+        return true;
+    }
+}