[Suggestion] User Interface Icon for "In-Shelter" Status

Have an icon on the hud that let's the player see whether or not the tile their character occupies is considered to be sheltered or un-sheltered at any given time. This will improve the learning curve for "how to build a proper shelter" and allow people to know without placing and picking up items. Especially the bedroll, which can break very quickly under certain circumstances when not in shelter.