Build: Adding a missing shader include

.gitignore

@@ -17,10 +17,13 @@ Data/*
 !Data/EmptyShaderText.txt
 !Data/Layout.asset
 !Data/Shaders
+!Data/Shaders/Includes/
+!Data/Raw/
 Data/Raw/*
 !Data/Raw/DataList.json
 !Data/Raw/GUISkin.json
-!Data/Raw/Shaders
+!Data/Raw/Shaders/
+!Data/Raw/Shaders/Includes/
 Documentation/html
 /Build
 *.aps

Data/Raw/Shaders/Includes/GizmoCommon.bslinc

@@ -0,0 +1,14 @@
+mixin GizmoCommon
+{
+	code
+	{
+		cbuffer Uniforms
+		{
+			float4x4 	gMatViewProj;
+			float4		gViewDir;
+			float 		gInvViewportWidth;
+			float 		gInvViewportHeight;
+			float 		gViewportYFlip;
+		}
+	};
+};