Refactor how we handle displaying bus stops in routeDetailVC

[Omarrasheed]

Whenever we have a bus route that has several stops in between, we have a button to toggle whether or not to display the buses in that route. But the way we do this internally is by making an empty Direction object with a name and location and passing it into our list of directions. We should find a way to refactor this so that we can store and display both bus stops and directions so that we don't continue with this jank workaround

[Omarrasheed]

Closing because this was fixed a while ago