Adding class Player.cs

I added the skeleton for the player class, initialize(), Update(), and Draw()
Updated the player class

I added some instance variables to the player class and updated the Initialize() and Draw() methods.
Updated game1.cs

I added an initialization, load content, and draw information to game1.cs for the newly created player.cs
Compiled and ran the code

The code succesfully comiles and runs, showing the player ship at the proper position
Update game with movement controls

Gave keyboard and gamepad states for the game and apply them in the updated method (creating a updatePlayer() helper method)
Vertically centered the initial player start

The player started at width/2 too low so I adjusted its init position, due to (0,0) being the upper left of the texture.
Merge remote-tracking branch 'origin/develop'

Conflicts:
	Shooter_Project_Windows/Shooter/Shooter/Shooter/Game1.cs