Added sample for shader debugprintf

shaders/hlsl/debugprintf/toon.vert

@@ -0,0 +1,42 @@
+struct VSInput
+{
+[[vk::location(0)]] float3 Pos : POSITION0;
+[[vk::location(1)]] float3 Normal : NORMAL0;
+[[vk::location(2)]] float3 Color : COLOR0;
+};
+
+struct UBO
+{
+	float4x4 projection;
+	float4x4 model;
+	float4 lightPos;
+};
+
+cbuffer ubo : register(b0) { UBO ubo; }
+
+struct VSOutput
+{
+	float4 Pos : SV_POSITION;
+[[vk::location(0)]] float3 Normal : NORMAL0;
+[[vk::location(1)]] float3 Color : COLOR0;
+[[vk::location(2)]] float3 ViewVec : TEXCOORD1;
+[[vk::location(3)]] float3 LightVec : TEXCOORD2;
+};
+
+VSOutput main(VSInput input)
+{
+	VSOutput output = (VSOutput)0;
+	output.Normal = input.Normal;
+	output.Color = input.Color;
+	output.Pos = mul(ubo.projection, mul(ubo.model, float4(input.Pos.xyz, 1.0)));
+
+	float4 pos = mul(ubo.model, float4(input.Pos, 1.0));
+	// Output the vertex position using debug printf
+	printf("Position = %v4f", pos);
+
+	output.Normal = mul((float4x3)ubo.model, input.Normal).xyz;
+	float3 lPos = mul((float4x3)ubo.model, ubo.lightPos.xyz).xyz;
+	output.LightVec = lPos - pos.xyz;
+	output.ViewVec = -pos.xyz;
+	return output;
+}