New town layouts, initial progress

common/src/path.rs

@@ -32,6 +32,15 @@ impl<T> FromIterator<T> for Path<T> {
     }
 }
 
+impl<T> IntoIterator for Path<T> {
+    type Item = T;
+    type IntoIter = std::vec::IntoIter<T>;
+
+    fn into_iter(self) -> Self::IntoIter {
+        self.nodes.into_iter()
+    }
+}
+
 impl<T> Path<T> {
     pub fn is_empty(&self) -> bool { self.nodes.is_empty() }