Beta Release 0.1.1

Changes:

• Added a menu system allowing you to change planes without having to literally edit variables in the engine
• Fixed a typo where the A-10A was labeled as the A-10
• Added the Su-27S and its gun, the GSh-30-1, R-73 coming soon but for now has 2 AIM-9s for placeholder

Known issues:

• Current menu has no way to go back forcing you to restart the game to return