Moved Shaders src to CodeWalker.Shaders

CodeWalker.Shaders/PPLumBlendCS.hlsl

@@ -0,0 +1,16 @@
+StructuredBuffer<float> Target : register( t0 );
+RWStructuredBuffer<float> Current : register( u0 );
+
+cbuffer cb0
+{
+    float BlendFactor;
+    float3 pad;
+}
+
+[numthreads(1, 1, 1)]
+void main( uint3 DTid : SV_DispatchThreadID )
+{
+    float t = max(Target[0],0);
+    float c = max(Current[0],0);
+    Current[0] = c + ((t - c) * BlendFactor);
+}