Added dumper

git-svn-id: https://redmine.imt-atlantique.fr/svn/xaal/code/Go/trunk/xaal-lib/apps@3109 b32b6428-25c9-4566-ad07-03861ab6144f

dumper.go

+package main
+
+import (
+	"fmt"
+	"os"
+	"os/signal"
+
+	xAALLib "xAAL/lib"
+)
+
+func showMessage(msg *xAALLib.Message) {
+	if msg.IsAttributesChange() {
+		msg.Dump()
+	}
+}
+
+func main() {
+
+	eng := xAALLib.NewEngine()
+	eng.Start()
+
+	eng.Subscribe(showMessage)
+
+	c := make(chan os.Signal, 1)
+	signal.Notify(c, os.Interrupt)
+	<-c
+
+	fmt.Println("Exiting")
+	eng.Stop()
+}