Big updates!

A lot of changes here. Firstly saving has been added; this should make progression more rewarding. Besides that, the UI has had a lot of functional improvements under the hood. This includes an easy way for me to display and add new skills to the UI and let the player buy them. Besides this, the way leveling works is now different. Rather than it becoming harder and harder to get AP, instead, your stats cost more and more to upgrade; this should make buying skills at high levels not as much of a pain. Also, agility now affects attack cd and dodge chance. Finally, the enemies don't currently level with you, but I can easily reenable them if desired. Flight, ki blast, and super Saiyan are no longer auto-unlocked, you must spend ap to purchase.