added example service

src/bin/HelloWorldService.hx

@@ -0,0 +1,23 @@
+package bin;
+
+import kernel.log.Log;
+import kernel.Timer;
+import kernel.ps.ProcessHandle;
+import kernel.ps.Process;
+
+class HelloWorldService implements Process {
+    public function new() {}
+
+	public function run(handle:ProcessHandle) {
+        Log.debug("HelloWorldService started");
+        handle.write("Hello World! Started\n");
+        this.startTimer(handle);
+    }
+
+    public function startTimer(handle: ProcessHandle) {
+        new Timer(1000, function() {
+            handle.write("Hello World!\n");
+            this.startTimer(handle);
+        });
+    }
+}