redefined Object_String for simpler string handling and made other related changes

h2/cmd/scheme.adb

@@ -1,3 +1,4 @@
+
 with H2.Scheme;
 with H2.Pool;
 with Storage;
@@ -5,6 +6,7 @@ with Stream;
 with Ada.Text_IO;
 with Ada.Unchecked_Deallocation;
 
+
 procedure scheme is
 	--package S renames H2.Scheme;
 	--package S is new  H2.Scheme (Wide_Character, Wide_String);