[SG2_Wasy]

Change list 0.7

- another step to performance - 22 kHz sound settings now suport (realy i don't hear difference in gamesound on 22kHz and 44kHz)
- Allison added (with difference between P38 and P39,P40)
- R2800 added (with little difference between P47 and F4U)
- Griffon added (for 25Lbs Spitfire)