Added is_trivially_copyable traits

test/Jamfile

@@ -268,6 +268,7 @@ project
         : [ requires cxx11_variadic_templates ] ]
     [ compile support/tag_of.cpp ]
     [ compile support/unused.cpp ]
+    [ compile support/is_trivially_copyable.cpp ]
 
 #   [ compile-fail xxx.cpp  ]