Move map bounds checking into Map.
Remove redundant FindActorsInBox helpers.
Move ChooseRandom(Edge)Cell into Map.
Move DistanceToMapEdge into Map.
Add World parameter to Target.FromOrder.
Add World parameter to Target.FromCell.
Add World parameter to Util.BetweenCells.
Replace CPos.CenterPosition -> Map.CenterOfCell.
Remove WVec.ToCVec.
Replace WPos.ToCPos -> Map.CellContaining.
Remove conversions between legacy and world types.
Remove CVec -> WVec conversion.
Braindump new approach.