Update TODO

TODO

@@ -8,6 +8,7 @@ TODO
 
 [/] Tests
 [/] Documentation
+[ ] Fix cases where new_custom() should be used instead of just new()
 [ ] Add to iterators struct
     [ ] get_value
     [ ] get_index
@@ -31,6 +32,7 @@ TODO
     [ ] serialize    {all}
     [ ] deserialize  {all}
 [ ] Zip Iterators
+[ ] Consumer Iterators
 [ ] Dev Collections
     [ ] BidiMap
     [~] Deque