rename layout to type

this one goes to caleb for pointing it out.
Much better word

lib/soml/parfait/class.soml

@@ -1,6 +1,6 @@
 class Class < Object
   field List instance_methods
-  field Layout object_layout
+  field Type object_type
   field Word name
   field Word super_class_name
 

lib/soml/parfait/object.soml

@@ -1,16 +1,16 @@
 class Object
 
-  Layout get_layout()
-    return self.layout
+  Type get_type()
+    return self.type
   end
 
   Class get_class()
-    Layout l = self.layout
+    Type l = self.type
     return l.object_class
   end
 
   Word get_class_name()
-    Layout l = self.layout
+    Type l = self.type
     Class c = l.object_class
     return c.name
   end

lib/soml/parfait/type.soml

@@ -1,4 +1,4 @@
-class Layout < Object
+class Type < Object
   field Class   object_class
   field List    instance_methods
   field Integer indexed_length