Get a basic MetaClass going

Does get created in new, but not in boot.
Also not yet used in compiling

test/parfait/test_space.rb

@@ -6,7 +6,7 @@ module Parfait
     def classes
       [:BinaryCode,:Block,:CacheEntry,:Callable,:CallableMethod,:Class,
         :DataObject,:Data4,:Data8,:Data16,:Dictionary,:Factory, :Integer,:FalseClass,
-        :List,:Message,:NamedList,:NilClass,:Object,:ReturnAddress,
+        :List,:Message, :MetaClass, :NamedList,:NilClass,:Object,:ReturnAddress,
         :Space,:TrueClass,:Type,:VoolMethod,:Word]
     end