Adding a Exclude @(EmbeddedResource) during migration so that we don't get duplicate resources when building migrated apps.

TestAssets/TestProjects/TestAppWithEmbeddedResources/Program.cs

@@ -0,0 +1,24 @@
+using System;
+using System.Linq;
+using System.Reflection;
+
+namespace ConsoleApplication
+{
+    public class Program
+    {
+        public static void Main(string[] args)
+        {
+            var thisAssembly = typeof(Program).GetTypeInfo().Assembly;
+            var resources = from resourceName in thisAssembly.GetManifestResourceNames()
+                            select resourceName;
+
+            if (resources.Count() > 1)
+            {
+                throw new Exception($"{resources.Count()} found in the assembly. Was expecting only 1.");    
+            }
+
+            var resourceNames = string.Join(",", resources);
+            Console.WriteLine($"{resources.Count()} Resources Found: {resourceNames}");
+        }
+    }
+}