moved editor-specific shader generator code to an Editor folder

Assets/ShaderGenerator/Editor.meta

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Assets/ShaderGenerator/ShaderGeneratorAttributes.cs

+using System;
+
+namespace UnityEngine.Experimental.ScriptableRenderLoop
+{
+    public enum PackingRules
+    {
+        Exact,
+        Aggressive
+    };
+
+    [AttributeUsage(AttributeTargets.Struct | AttributeTargets.Class | AttributeTargets.Enum)]
+    public class GenerateHLSL : System.Attribute
+    {
+        public PackingRules packingRules;
+        public bool needAccessors; // Whether or not to generate the accessors
+        public bool needParamDefines; // Wheter or not to generate define for each parameters of the struc
+        public int paramDefinesStart; // Start of the generated define
+
+        public GenerateHLSL(PackingRules rules = PackingRules.Exact, bool needAccessors = true, bool needParamDefines = false, int paramDefinesStart = 1)
+        {
+            packingRules = rules;
+            this.needAccessors = needAccessors;
+            this.needParamDefines = needParamDefines;
+            this.paramDefinesStart = paramDefinesStart;
+        }
+    }
+
+    [AttributeUsage(AttributeTargets.Field)]
+    public class SurfaceDataAttributes : System.Attribute
+    {
+        public string displayName;
+
+        public SurfaceDataAttributes(string displayName = "")
+        {
+            this.displayName = displayName;
+        }
+    }
+}

Assets/ShaderGenerator/ShaderGeneratorAttributes.cs.meta

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