Add ExamplEditor

Needed to reproduce issue

Author: mackysoft

Assembly-CSharp-Editor.csproj

@@ -1,7 +1,7 @@
 <?xml version="1.0" encoding="utf-8"?>
 <Project ToolsVersion="4.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
   <PropertyGroup>
-    <LangVersion>8.0</LangVersion>
+    <LangVersion>latest</LangVersion>
   </PropertyGroup>
   <PropertyGroup>
     <Configuration Condition=" '$(Configuration)' == '' ">Debug</Configuration>
@@ -52,11 +52,9 @@
     <UnityBuildTarget>StandaloneWindows:5</UnityBuildTarget>
     <UnityVersion>2020.3.24f1</UnityVersion>
   </PropertyGroup>
-  <ItemGroup>
-    <Analyzer Include="C:\Program Files (x86)\Microsoft Visual Studio\2019\Community\Common7\IDE\Extensions\Microsoft\Visual Studio Tools for Unity\Analyzers\Microsoft.Unity.Analyzers.dll" />
-  </ItemGroup>
   <ItemGroup>
     <Compile Include="Assets\PackageTools\Editor\UnityPackageExporter.cs" />
+    <Compile Include="Assets\MackySoft\MackySoft.SerializeReferenceExtensions\Example\ExampleAssets\Scripts\Editor\ExampleEditor.cs" />
   </ItemGroup>
   <ItemGroup>
     <Reference Include="UnityEngine">

Assets/MackySoft/MackySoft.SerializeReferenceExtensions/Example/ExampleAssets/Scripts/Editor.meta

@@ -0,0 +1,13 @@
+using UnityEditor;
+
+namespace MackySoft.SerializeReferenceExtensions.Example.Editor {
+
+	[CustomEditor(typeof(Example))]
+	public class ExampleEditor : UnityEditor.Editor {
+
+		// Enabling the custom editor slowdown rendering performance.
+		public override void OnInspectorGUI () {
+			base.OnInspectorGUI();
+		}
+	}
+}