Implementing skills and changes to crafting

This update makes some changes to how crafting works and introduces first few skills to this process. A randomised selection of black, yellow, green and dark green bars is generated for every new item. Hit the dark green bar for the best,  green for medium and yellow for lowest quality improvement of your item. Avoid the black bars, those will destroy the item you are crafting.

Starting from level 3, you will be now also gaining skill points, which you can then invest in improving your crafting skills. The skill tree is currently quite empty, but the next few updates will focus on fleshing it out. You can find the skill tree in your logbook.