add fog and effects

core/daynight/fog.gdshader

@@ -1,6 +1,6 @@
 shader_type spatial;
 render_mode unshaded, depth_draw_never, cull_disabled, blend_mix;
-/*
+
 group_uniforms TextureCheck;
 uniform sampler2D fog_noise : repeat_enable, filter_linear_mipmap;
 uniform bool use_red_as_alpha = true;
@@ -37,4 +37,4 @@ void fragment() {
 	ALBEDO = mix(tinted_fog, dark_fog, night_intensity);
 	
 	ALPHA = fog_color.a * noise_alpha * edge_mask;
-}*/
+}