QOL improvements

I've been making lots of little changes here and there to improve overall QOL, and I think it's time to mention some things specifically.

+ An option now exists to show enemy HP on mouse-over during combat, if you haven enough lore to see health bars
Mousing over the turn-order will show the HP regardless of the option being checked

+ Sell All button for stacked items
+ Monsters summoned by heroes now show a purple health bar
+ Most Resist Enchants are now significantly cheaper to move and rebind to new items
+ Training Kiosks now train twice as fast, and spell training also helps with memorization
+ Added some more information in the Info section
+ Prepped controller rebinding to support more keys