Move the space instance to the parfait module

A better fit, maybe even a pattern for singletons

lib/elf/object_writer.rb

@@ -21,7 +21,7 @@ module Elf
       set_text assembler.write_as_string
 
       # for debug add labels for labels
-      Parfait::Space.object_space.types.values.each do |type|
+      Parfait.object_space.types.values.each do |type|
         type.methods.each do |f|
           f.instructions.each_label do |label|
             add_symbol "#{clazz.name}::#{f.name}:#{label.name}" , label.position