D27805: Add a screenshot capture item and use it to test rendering

[Arjen Hiemstra]

ahiemstra abandoned this revision.
ahiemstra added a comment.


  Will continue this on Gitlab.

REPOSITORY
  R1049 KQuickCharts

REVISION DETAIL
  https://phabricator.kde.org/D27805

To: ahiemstra
Cc: davidedmundson, kde-frameworks-devel, LeGast00n, cblack, michaelh, ngraham, 
bruns