Feature Statistics: compute in parallel and enable cancelling the task

[ajdapretnar]

• What's wrong?

Feature Statistics stalls for an indeterminate amount of time when given a certain data set.

• How can we reproduce the problem?

Use hotel-bookings data from https://www.kaggle.com/jessemostipak/hotel-booking-demand or https://github.com/rfordatascience/tidytuesday/blob/master/data/2020/2020-02-11/readme.md and feed it to Feature Statistics.

The data has 119390 instances and 29 features with 1 meta feature.

• Which version of Orange are you using? How did you install Orange?

3.27.dev

• What is your operating system?
  OSX

[ales-erjavec]

Probably fixed by gh-5152. If not, please reopen.