Add Airfoil

This is a little add-on to import an airfoil dat file into blender. Simply click 'Add Airfoil' in the File/Import menu. The add-on currently supports the only the Selig format of dat files which seem to be the most common. A huge variety of airfoil dat files are available on airfoiltools.com. This addon is part of a larger project to provide Geometry Node tools for the design of 3D printed, radio controlled model aircraft. An instruction video is available here:https://youtu.be/Db_BlpDWU3M?si=S_bSsUxuHrI6dPeD