Created Larger Weapon Sprites

-Created Slower Shop Icons
-Added a field called PlayRate in Animation and AnimFrame.cs
  -Using PlayRate, animations can be sped up or slowed
-Made Slowers also slow enemy animations, causing them to attack slower
Merge branch 'LargerSwordSprite' into AdaptiveHUD

Conflicts:
	Defend Your Castle/Defend Your Castle/GamePage.xaml
	Defend Your Castle/Defend Your Castle/Level.cs