Nexxt

- Qt6 and PySide6 support
- number of pending samples for a connection is now configurable to 1 sample (default, behaviour of versions 0.x), N > 1 samples and non-blocking

**Full Changelog**: https://github.com/ifm/nexxT/compare/0.9.1...0.9.2

fix issues https://github.com/ifm/nexxT/issues/40, https://github.com/ifm/nexxT/issues/41
add possibility to limit display framerate in MainWindow (filters need to be adapted)

- disable mouse wheel scrolling for main window's viewport
- always use full C locale (instead of using just the number options)
- when re-opening the currently open config file, the gui state is now restored properly (issue 38)
- add a reload button for reloading the configuration's python modules (issue 9)
- improved copy&paste handling of file browser widget (issue 24)
- GenericReader now providses a property for the selection of the default step stream (issue 39)