[ENH] OWOutliers: Data info displayed in the status bar

[aturanjanin]

Description of changes

Modification of the status bar data info display.

Includes

• Code changes
• Tests
• Documentation

[codecov]

Codecov Report

Merging #4547 into master will increase coverage by 0.16%.
The diff coverage is 100.00%.

@@            Coverage Diff             @@
##           master    #4547      +/-   ##
==========================================
+ Coverage   83.37%   83.53%   +0.16%     
==========================================
  Files         279      276       -3     
  Lines       55779    55303     -476     
==========================================
- Hits        46507    46199     -308     
+ Misses       9272     9104     -168     

[VesnaT]

There is not much point in self.assertEqual(info._StateInfo__input_summary.brief, "") lines, since self.widget.info.set_input_summary was mocked.

[VesnaT]

The same goes for the code some lines below.
info._StateInfo__input_summary.brief could never have been changed, since mocked, so there is no point of testing it.

You could leave the test as it was, just add the lines to test the detail:
self.assertEqual(info._StateInfo__input_summary.detail, detail)

[VesnaT]

The same goes for the code some lines below.
info._StateInfo__input_summary.brief could never have been changed, since mocked, so there is no point of testing it.

You could leave the test as it was, just add the lines to test the detail:
self.assertEqual(info._StateInfo__input_summary.detail, detail)