Need intermediate signed assembly to access internals from unit tests

(cherry picked from commit ed247c71e95d0d46cea6ac730091463e4d259715)

Source commit: 36f59c998afd214411374b65fa9c664aca13f1b8

dotnet/properties/AssemblyInfo.cs

@@ -27,7 +27,7 @@ using System.Runtime.InteropServices;
 
 [assembly: CLSCompliant(true)]
 
-[assembly: InternalsVisibleTo("Tests")]
+[assembly: InternalsVisibleTo("TestsAccess")]
 
 namespace WinSCP
 {