Image scaling developer docs
What does this MR do?
Relates to #268242 (closed)
This adds developer documentation for image scaling, which can be difficult to grok without guidelines.
Since this didn't quite fit in any existing category, I added it as a Backend guide
in the Contributor
section.
Preview: http://docs-preview-ee-47506.178.62.207.141.nip.io/ee/development/image_scaling.html
Does this MR meet the acceptance criteria?
Conformity
Edited by Matthias Käppler