Continued Working on the How to Play Tutorial

- Redesigned the tutorial to scale to different screen sizes and resolutions
- Will need to redesign the tutorial without the use of a FlipView
Added the remaining sounds

-Added a new Goblin Death sound that isn't as harsh
-Added a Level Complete sound
-Lowered the volume of the Weapon Swing sound
-Removed the SOR2 sound effect, aka "test"
-Played the sounds at the proper times

-Created a new ShopItem, RepairWallsx10, which will also be our final one
-Created a background for the Title Screen
Merge remote-tracking branch 'origin/ContinueHowToPlay' into MoreSoundsMusic
Merge branch 'MoreSoundsMusic'