Align entities with surfaces #20
Description
Currently, players expect that spawning sign entities will spawn them flat against a wall, similar to what happens when deploying a sign. However, what actually happens is that the sign will be rotated based on the player's view angles. We should improve this for select entities. Needs some research to determine which entities should automatically spawn flat on surfaces. This alignment should only happen for the initial placement, since we don't want to interfere with manual positioning that players try to do after the initial placement.