Create common FA/State/Transition classes across NFA/DFA

lib/imbecile/regex/fa/state/transition.rb

@@ -0,0 +1,25 @@
+module Imbecile
+  class Regex
+    class FA
+      class State
+
+        class Transition
+
+          attr_reader :code_point_range
+          attr_reader :destination
+
+          def initialize(code_point_range, destination)
+            @code_point_range = code_point_range
+            @destination = destination
+          end
+
+          def nil?
+            @code_point_range.nil?
+          end
+
+        end
+
+      end
+    end
+  end
+end