Shapeout2

- tests: fix fake dataset creation

- fix: casting error when using integer feature for plot color
- fix: also export logs and tables to .rtdc with prefix "so2exp_"
- enh: minor minimization in waiting times
- ref: unify json dumps when saving sessions
- setup: bump dclab from 0.48.4 to 0.50.4

- docs: don't build PDF on rtd (failed)
- setup: bump dclab from 0.48.2 to 0.48.4 (don't load invalid
inertia ratio data from existing HDF5 files)

- setup: bump dclab from 0.48.1 to 0.48.2 (improved speed, fixed
bug with inertia ratio in long channels)

- feat: support new viscosity model buyukurganci-2022 (136)
- enh: increase speed of QuickView event visualization
- enh: turn on auto-apply in QuickView by default
- setup: bump dclab from 0.47.2 to 0.48.1

- feat: allow to disable KDE or use feature data as marker
hue in QuickView
- fix: do not perform auto-apply when changing downsampling
value and downsampling is disabled in QuickView
- fix: catch IndexError when trying to view an event that is not
there anymore in polygon-selection-mode in QuickView
- enh: make auto-apply in QuickView plot settings optional
- docs: update screenshot scripts