suggested changes to 84 projects per Issue dotnet#10961

Author: Dick Baker

.gitignore

@@ -325,3 +325,4 @@ _dependentPackages/
 /snippets/csharp/System.ComponentModel/AmbientValueAttribute/Overview/form1.resx
 /snippets/csharp/System.ComponentModel/AsyncCompletedEventArgs/Overview/primenumbercalculatormain.resx
 /snippets/csharp/System.ComponentModel/BackgroundWorker/Overview/fibonacciform.resx
+/snippets/csharp/System.ComponentModel/Dick.bat