Added a menu between the splash and pre game screen in preperation for options menu

Signed-off-by: Lewis Storey <iamlewisstorey@yahoo.com>
Options screen built and functioning almost correctly
Doesn't switch full screen on or off yet
Cannot change resolution yet

Signed-off-by: Lewis Storey <iamlewisstorey@yahoo.com>
Got resolution setting in options almost working
Just need to figure out how to change it in the options

Signed-off-by: Lewis Storey <iamlewisstorey@yahoo.com>
Fixed setting of resolution from options screen.
Added noise for moving around the menu and options screen.

Signed-off-by: Lewis Storey <iamlewisstorey@yahoo.com>
Added some code so songs won't restart if the same name is passed in.
Can force a restart is needed

Signed-off-by: Lewis Storey <iamlewisstorey@yahoo.com>
Rocket Launcher implemented in full
Can't see any bugs.

Signed-off-by: Lewis Storey <iamlewisstorey@yahoo.com>
Fixed a few diffrent bugs and problems
Rocket is now rotated correctly. Required adding a line to Sprite.cs
Explosions can now have their scale set in construction
Hitting escape will no longer quit the game. Back button still does

Signed-off-by: Lewis Storey <iamlewisstorey@yahoo.com>