use factory to generte intergers in space

start with just integer factory in space
change all the hand-out code
still #14

lib/risc/builder.rb

@@ -131,10 +131,10 @@ module Risc
       to.set_builder( self )    # esecially div10 comes in without having used builder
       from.set_builder( self )  # not named regs, different regs ==> silent errors
       build do
-        space? << Parfait.object_space
-        to << space[:next_integer]
+        factory! << Parfait.object_space.get_factory_for(:Integer)
+        to << factory[:next_object]
         integer_2! << to[:next_integer]
-        space[:next_integer] << integer_2
+        factory[:next_object] << integer_2
         to[Parfait::Integer.integer_index] << from
       end
     end

lib/risc/parfait_boot.rb

@@ -163,9 +163,8 @@ module Parfait
       Factory: { for_type: :Type , next_object: :Object , last_object: :Object ,
               reserve: :Object , attribute_name: :Word },
       ReturnAddress: {next_integer: :ReturnAddress},
-      Space: {classes: :Dictionary , types: :Dictionary ,
+      Space: {classes: :Dictionary , types: :Dictionary , factories: :Dictionary,
               next_message: :Message , messages: :Message ,
-              next_integer: :Integer,  integers: :Integer ,
               next_address: :ReturnAddress ,addresses: :ReturnAddress ,
               true_object: :TrueClass, false_object: :FalseClass , nil_object: :NilClass},
       TrueClass: {},