Added samples for ray queries and callable ray tracing shaders

data/shaders/glsl/raytracingcallable/callable1.rcall

@@ -0,0 +1,11 @@
+#version 460 core
+#extension GL_EXT_ray_tracing : enable
+
+layout(location = 0) callableDataInEXT vec3 outColor;
+
+void main()
+{
+    // Generate a checker board pattern
+	vec2 pos = vec2(gl_LaunchIDEXT / 8);
+	outColor = vec3(mod(pos.x + mod(pos.y, 2.0), 2.0));
+}