Turn restrictions editor

The Turn-by-turn directions editor is missing from rapid v2. This will be a stretch goal for us to get it implemented in time, as it is not widely used by the community (at least, we think....). 

Pic of the old functionality: 

![Image](https://user-images.githubusercontent.com/1887955/181350832-0fd9550a-74bb-40f5-a35e-fafcd9c53ad2.png)

