Implemented timers

examples/timers.php

@@ -0,0 +1,54 @@
+<?php
+
+require_once __DIR__."/../vendor/autoload.php";
+
+use NoccyLabs\Shell\Shell;
+use NoccyLabs\Shell\Command;
+use NoccyLabs\Shell\Context;
+
+class MyContext extends Context
+{
+    /**
+     * @command testme
+     * @args
+     * @help Useful test!
+     */
+    public function test()
+    {
+
+    }
+}
+
+class MyShell extends Shell
+{
+
+    protected $seq = 0;
+
+    protected function configure()
+    {
+        $context = new MyContext();
+        $this->pushContext($context);
+        $this->updatePrompt();
+
+        $this->addTimer(5000, function () {
+            echo "5 seconds\n";
+        });
+    }
+    
+    protected function updatePrompt()
+    {
+        $this->setPrompt("test[{$this->seq}]: ");
+    }
+    
+    protected function onCommand($buffer)
+    {
+        $this->seq++;
+        $this->updatePrompt();
+        parent::onCommand($buffer);
+    }
+
+}
+
+$myShell = new MyShell();
+$myShell->run();
+echo "Exiting\n";