Problem with subgoals for approaching a closed door

[wooshrow]

Subgoals related to approaching a door, in particular when it is closed, is causing some problems. It seems to be caused by two issues:
(1) the agent is required to reach a point quite close to the door to "see" it. The distance might be too strict, especially if there is no nav-node around that distance.
(2) sometimes the agent reports it cannot find a path, where it should. It might be a consequence of (1).

Investigate this.

[GameLevel2_2020_08_03_16.59.20.txt](https://github.com/iv4xr-project/iv4xrDemo/files/5053640/GameLevel2_2020_08_03_16.59.20.txt)