Boarding up windows & holes in Safehouses.

[Dustweaver]

Got this idea in light of the "Safehouse Customisation" as announced by the recent Dev Diary.

Simply put, I think it would be a nice option for our survivor to be able to board up windows and holes in certain structures, as one might do in an attempt to retain heat(maybe like +0.5°C for boarding all windows in a room).

Examples would be: a) The hole in the roof of Mountaineer's Hut, b) the windows of the Lookouts.

For this, I would suggest adding nails as a forge item, with reclaimed wood as the other half of that recipe.

Even if it was purely cosmetic, I feel it would help with making certain safehouses feel more homely.