Fixed right clicking outside of attack range when in attack select. Modified hit damage popup visuals

Now displays what weapon is currently equipped. Fix bug where damage can be negative, and hit/crit rate outside of 0-100 range

Attack confirmation menu now doesn't show stats if enemy unit can't perform counter attacks. Magical and Physical damage are now different

Added archer and mage class implementations. Classes are now unable to counter attack if not in range

Dead units no longer counter attack. Added game over button and overlay. Button event to be implemented

Merged parts of commit b118f334 (the parts that don't delete our docs).

This reverts commit b118f334

Changed 2 arrays into Enums in unit and button. Added doxygen documenation for : Archer, Button, DamageCalculation, Game, GameState, HowToPlay,HowToPlay2, HowToPlay3, Mage, Unit, Warrior

Units now take damage upon attacking, and getting counter attacked. Enemy units now have a counterattack animation