Added vendor/ directory for Composer's installed files

vendor/illuminate/contracts/Container/ContextualBindingBuilder.php

@@ -0,0 +1,21 @@
+<?php namespace Illuminate\Contracts\Container;
+
+interface ContextualBindingBuilder {
+
+	/**
+	 * Define the abstract target that depends on the context.
+	 *
+	 * @param  string  $abstract
+	 * @return $this
+	 */
+	public function needs($abstract);
+
+	/**
+	 * Define the implementation for the contextual binding.
+	 *
+	 * @param  \Closure|string  $implementation
+	 * @return void
+	 */
+	public function give($implementation);
+
+}