Upgraded original RothenburgAR to Unity version 2017.4.5f1 (and upgrading from standalone vuforia to the version integrated in unity)

Assets/Vuforia/Shaders/VertexLitWithZ.shader

@@ -0,0 +1,33 @@
+//==============================================================================
+//Copyright (c) 2013-2014 Qualcomm Connected Experiences, Inc.
+//All Rights Reserved.
+//==============================================================================
+
+Shader "Transparent/VertexLit with Z" {
+Properties {
+    _Color ("Main Color", Color) = (1,1,1,1)
+    _MainTex ("Base (RGB) Trans (A)", 2D) = "white" {}
+}
+ 
+SubShader {
+    Tags {"RenderType"="Transparent" "Queue"="Transparent"}
+    // Render into depth buffer only
+    Pass {
+        ColorMask 0
+    }
+    // Render normally
+    Pass {
+        ZWrite On
+        Blend SrcAlpha OneMinusSrcAlpha
+        ColorMask RGB
+        Material {
+            Diffuse [_Color]
+            Ambient [_Color]
+        }
+        Lighting On
+        SetTexture [_MainTex] {
+            Combine texture * primary DOUBLE, texture * primary
+        } 
+    }
+}
+}