Added Bleeding and Frozen effects to demo all of the fullscreen effects
Added ability for ItemStatsProperties to lower protection values (previously could only do positive values)
Bleeding slows by 20% and deals 5 dmg per second for 10 seconds
Frozen stuns the player for 5 seconds, lowers all damage resistances and will break when the player takes damage (so the hit that breaks the freeze should do a lot of damage)