Alpha test in shadow map

The alpha test implemented in engine and shadow map renders meshes with alpha test.

Refraction

I implemented Refraction effect in KGE and now effect manager can manages post process effects too.
Effect manager can prepare rendered images upon the post process effects needs. For now effect manager prepare the color map.

I add a screen shot from Simorgh editor here.
Simorgh editor is a 3D world editor build with KGE