Added - LevelManager.cs

Initial commit for the level Manager class.
Update - Added HUD + Level Manager

Added base initializations for HUD and Level Manager and for Draw.
Added - HUD.cs

Initial commit for the HUD class.
Added- Texture and Font

Added Courier New 14 font and a Bottom HUD Banner.
Initial Commit.

The initial commit for the HUD class, still needs work.
Initial Commit.

The initial commit for the level manager, still needs work. Currently
waiting for the enemy class.
Initial Commit.
Initial Commit.