Removed both the hidden-switch that required the Eye and the look-ring, and replaced with a sokoban puzzle to open the door to the Hand.

This also means that from the start of the game, and after a timeloop-reset, you're now able to get the feet OR hands first - you're no longer locked into the linear sequence of feet-eyes-hands.

Also added the first pile-of-bones helper. I'll be gradually adding these throughout the game to give help to players who're feeling lost, as well as tying in the story better.