Added the Object#encoded_hash method to find the encoded hash used in…

… inspect.

lib/extlib/object.rb

@@ -141,4 +141,17 @@ def in?(arrayish,*more)
     arrayish = more.unshift(arrayish) unless more.empty?
     arrayish.include?(self)
   end
+
+  # @note
+  #   For instances of objects that don't override the #inspect method, there
+  #   is an encoded hash to uniquely identify the object. This method
+  #   reproduces this to be used in #inspect in order to keep the same look
+  #   as well as provide this information.
+  #   This is inessential, but may be useful.
+  # 
+  # @return <String>
+  #   Returns the 16-byte encoded hash for the object
+  def encoded_hash
+    (self.hash * 2).to_s(16)
+  end
 end