What's New in 4.7.0

This is a substantial reorganization and updating of the code. Changes to the app are only cosmetic.

• Switched from qmake to CMake for building of xyscan
• Using Qt 6.10.1 in the binary version distributed
• Making full use of new Qt features
• Several minor problems discovered and solved (thanks to chatGPT 5.1)
• Finally a fully tested Linux version that integrates into the desktop, a first.
• Universal binary created for macOS build on Tahoe 26.1 that runs on x86_64 and arm64 architectures
• PDF handling now consistent on all platforms (QtPDF)