add a kenrnel array class with function stubs

lib/parfait/array.rb

@@ -2,15 +2,8 @@
 # instead it is parsed by salama to define part of the program that runs
 
 class Array < BaseObject
-  def initialize size
-    
-  end
-
-  def at(index)
-    
-  end
-  
-  def set(index , value)
-    
-  end
+  #many basic array functions can not be defined in ruby, such as
+  # get/set/length/add/delete
+  # so they must be defined as CompiledMethods in Salama::Kernel
+   
 end