Made the HUD Adapt to Different Screen Sizes and Resolutions

- The HUD will now look the same on all screen sizes and resolutions
- Replaced the volume ComboBoxes with Sliders on both the Options Screen and the Pause Menu. Changed the code appropriately
- Created a new XAML style for Sliders: SliderStyle
- Doubled the amount of Bonus Gold gained at the end of a level
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
Merge branch 'AdaptiveHUD'