ADDED: Missing resources on some examples

examples/models/resources/shaders/glsl120/cubemap.vs

@@ -0,0 +1,20 @@
+#version 120
+
+// Input vertex attributes
+attribute vec3 vertexPosition;
+
+// Input uniform values
+uniform mat4 matProjection;
+uniform mat4 matView;
+
+// Output vertex attributes (to fragment shader)
+varying vec3 fragPosition;
+
+void main()
+{
+    // Calculate fragment position based on model transformations
+    fragPosition = vertexPosition;
+
+    // Calculate final vertex position
+    gl_Position = matProjection*matView*vec4(vertexPosition, 1.0);
+}