Initial upload opcua simulator

src/main/java/de/opcua/app/Launcher.java

@@ -0,0 +1,8 @@
+package de.opcua.app;
+
+/** Bootstrap-Launcher – umgeht JavaFX-Fat-JAR-Problem. */
+public class Launcher {
+    public static void main(String[] args) {
+        SimulatorApp.main(args);
+    }
+}