Change Mom to SlotMachine

rather large commit, but essentially a simple rename
Rationale in docs and blogs

lib/slot_machine/macro/comparison.rb

@@ -0,0 +1,30 @@
+module Mom
+  class Comparison < Macro
+    attr_reader :operator
+    def initialize(name , operator)
+      super(name)
+      @operator = operator.value
+    end
+    def to_risc(compiler)
+      builder = compiler.builder(compiler.source)
+      operator = @operator # make accessible in block
+      builder.build do
+        integer! << message[:receiver]
+        integer.reduce_int
+        integer_reg! << message[:arg1] #"other"
+        integer_reg.reduce_int
+        swap_names(:integer , :integer_reg) if(operator.to_s.start_with?('<') )
+        integer.op :- , integer_reg
+        if_minus false_label
+        if_zero( false_label ) if operator.to_s.length == 1
+        object! << Parfait.object_space.true_object
+        branch merge_label
+        add_code false_label
+        object << Parfait.object_space.false_object
+        add_code merge_label
+        message[:return_value] << object
+      end
+      return compiler
+    end
+  end
+end