Fix "Large door" handling during walking

[Xephy 237]

getWalking() doesn't handle going through "Large door", such as Yanille. I'd like to see this happen.

 

@Pandemic

[rokaHakor 171]

Add it to the path like getWalking().getAStarPathFinder().addObstacle(new PassableObstacle("Large door", "Open", null, null, null));