RJJ Agile Helicopters addon

This simple mod changes config values of Pawnee and Hummingbird to make them more agile. I've tried to base on real life values from manuals and, where I couldn't find any, rough estimations based on airshow videos. I've also changed names to AH-6 and MH-6 Littlebird.
The mod should be compatible with most other mods, as it consists only of changed values and name changes.