Porting examples

- Test.Common now used for Examples project.
- Testing examples alot.

Test.NetCore/Program.cs

@@ -1,12 +1,11 @@
-using Test.Common;
-
+
 namespace Test.NetCore
 {
     class Program
     {
         static void Main(string[] args)
         {
-            Common.Test.Run();
+            core_basic_window.Main();
         }
     }
 }