Bugfixes and other misc things
- Reset of points and stats properly changes everything now
- Fixed upgrading of weapons and revamped pricing, prices are not based on level but increase based on use
- changed item display to allow for more items and sort by level, also colors some stats based on the difference to the current items
- added some basic statistics display
- added scavenger and trader powers
- loot no longer gives the enemies weapon and armor but instead has a chance to generate loot and will always reward varying amounts of scrap