move parfait up one, as per its module structure

lib/parfait/binary_code.rb

@@ -0,0 +1,17 @@
+# A typed method object is a description of the method, it's name etc
+#
+# But the code that the method represents, the binary, is held as an array
+# in one of these.
+#
+
+module Parfait
+  # obviously not a "Word" but a ByteArray , but no such class yet
+  # As our String (Word) on the other hand has no encoding (yet) it is close enough
+  class BinaryCode < Word
+
+    def to_s
+      "BinaryCode #{self.char_length}"
+    end
+
+  end
+end