Make DebugDraw render lines with unlit PS

Source/Shaders/DebugDraw.shader

@@ -54,9 +54,22 @@ float4 PS(VS2PS input) : SV_Target
 	return PerformFakeLighting(input.Position, input.Color);
 }
 
+META_PS(true, FEATURE_LEVEL_ES2)
+float4 PSUnlit(VS2PS input) : SV_Target
+{
+	return input.Color;
+}
+
 META_PS(true, FEATURE_LEVEL_ES2)
 float4 PS_DepthTest(VS2PS input) : SV_Target
 {
 	PerformDepthTest(input.Position);
 	return PerformFakeLighting(input.Position, input.Color);
 }
+
+META_PS(true, FEATURE_LEVEL_ES2)
+float4 PS_DepthTestUnlit(VS2PS input) : SV_Target
+{
+	PerformDepthTest(input.Position);
+	return input.Color;
+}