moving string to parfait

using parfait::word
also rename builtins string to word

lib/register/builtin/word.rb

@@ -0,0 +1,19 @@
+module Builtin
+  class Word
+    module ClassMethods
+      def get context , index = Virtual::Integer
+        get_function = Virtual::CompiledMethod.new(:get , [ Virtual::Integer] , Virtual::Integer , Virtual::Integer )
+        return get_function
+      end
+      def set context , index = Virtual::Integer , char = Virtual::Integer
+        set_function = Virtual::CompiledMethod.new(:set , [Virtual::Integer, Virtual::Integer] , Virtual::Integer ,Virtual::Integer )
+        return set_function
+      end
+      def puts context
+        puts_function = Virtual::CompiledMethod.new(:puts , []  )
+        return puts_function
+      end
+    end
+    extend ClassMethods
+  end
+end