Napari-time-slicer

What's Changed
* delayed_imports by haesleinhuepf in https://github.com/haesleinhuepf/napari-time-slicer/pull/12

**Full Changelog**: https://github.com/haesleinhuepf/napari-time-slicer/compare/0.4.9...0.5.0

Drop support for Python 3.7, added 3.10

Bugfix:
* Issue with 4D data: Some timelapse processing functions crashed (e.g. SimpleITK)

Bug fixes
* Dropped pin on pyqt to prevent dependency conflicts

New features
* Support for storing file-backed timelapse data

Bugfix
* Crash in napari-process-points-and-surfaces (thanks to jo-mueller for reporting)