Added HLSL shaders for order independent transparency sample

data/shaders/hlsl/oit/geometry.vert

@@ -0,0 +1,34 @@
+// Copyright 2020 Sascha Willems
+
+struct VSInput
+{
+[[vk::location(0)]] float4 Pos : POSITION0;
+};
+
+struct RenderPassUBO
+{
+    float4x4 projection;
+    float4x4 view;
+};
+
+cbuffer renderPassUBO : register(b0) { RenderPassUBO renderPassUBO; }
+
+struct ObjectUBO
+{
+    float4x4 model;
+    float4 color;
+};
+
+cbuffer objectUBO : register(b1) { ObjectUBO objectUBO; }
+
+struct VSOutput
+{
+	float4 Pos : SV_POSITION;
+};
+
+VSOutput main(VSInput input)
+{
+	VSOutput output = (VSOutput)0;
+	output.Pos = mul(renderPassUBO.projection, mul(renderPassUBO.view, mul(objectUBO.model, input.Pos)));
+    return output;
+}