Update to work with Blender 3.1 and up

[uffdaken]

Hi there, I was able to get xplane2blender 4.2 to work most of the time with Blender 3.0. But had to copy the xplane2blender file to appdata/Roaming/blender foundation/blender/3.0/scripts/addon path. The import listing wouldn't show-up if I used the regular install method in the Blender Preference. Would like too see xplane2blender install and the import and export function work with at least with Blender 3.3 LTS. Take care.