Bluebird 757 Drag and Engine Thrust Fix

This add-on provides flight dynamics and engine thrust adjustments for the Bluebird 757-200 with Pratt & Whitney engines, aligning performance with Boeing 757 FCOM PW2037 data. Modifications include more accurate climb rates, thrust scaling by Mach, fuel flow, and various drag parameters. The update addresses excessive climb and power issues, improving realism during climb, cruise and descent. Some limitations and aircraft-specific issues remain, with the fix verified only for MSFS2024 and PW engines.