Added samples for ray queries and callable ray tracing shaders

data/shaders/glsl/raytracingcallable/closesthit.rchit

@@ -0,0 +1,18 @@
+#version 460
+#extension GL_EXT_ray_tracing : require
+#extension GL_EXT_nonuniform_qualifier : enable
+
+layout(location = 0) rayPayloadInEXT vec3 hitValue;
+layout(location = 0) callableDataEXT vec3 outColor;
+hitAttributeEXT vec3 attribs;
+
+layout(binding = 0, set = 0) uniform accelerationStructureEXT topLevelAS;
+
+void main()
+{
+	// Execute the callable shader indexed by the current geometry being hit
+	// For our sample this means that the first callable shader in the SBT is invoked for the first triangle, the second callable shader for the second triangle, etc.
+	executeCallableEXT(gl_GeometryIndexEXT, 0);
+
+	hitValue = outColor;
+}