Xrdplanner

Fixed crash on settings import.

**Full Changelog**: https://github.com/LennardKrause/xrdPlanner/compare/xrdPlanner-1.6.0...xrdPlanner-1.6.1

Added a unit value at mouse position (hover) to the overlay.

**Full Changelog**: https://github.com/LennardKrause/xrdPlanner/compare/xrdPlanner-1.5.3...xrdPlanner-1.6.0

Fixed a bug with a missing menu reference when exporting settings files.

**Full Changelog**: https://github.com/LennardKrause/xrdPlanner/compare/xrdPlanner-1.5.2...xrdPlanner-1.5.3

Updated the About window with links to github and the publication.

**Full Changelog**: https://github.com/LennardKrause/xrdPlanner/compare/xrdPlanner-1.5.1...xrdPlanner-1.5.2

BUGFIX: crash on cif drag/drop

**Full Changelog**: https://github.com/LennardKrause/xrdPlanner/compare/xrdPlanner-1.5.0...xrdPlanner-1.5.1

2023-11-28 Update: Added hotkeys to toggle between units/colormaps/overlays.
2023-11-28 Update: Added polarisation and solid angle correction factor overlays.

**Full Changelog**: https://github.com/LennardKrause/xrdPlanner/compare/xrdPlanner-1.4.0...xrdPlanner-1.5.0