Liftet object placing and buildings validation

[Federico]

In my opinion, there should be another Adventure command, for instance "Drop" or "Place" which works when you have something lifted,, you would show a "blueprint" of said object which will represent it's location when placed. If there's anything blocking the area, said object/s should be outlined in red but you would be able to keep trying to place that object there.

Same thing goes for actual building, with the outlining of items.