To facilitate inline image editing in Gutenberg, a new endpoint at wp/v2/media/<id>/edit has been introduced. This is functionally similar to the existing ajax image editor, however the REST API editor creates a new attachment record instead of updating an existing attachment.
Fixes#44405.
Props ajlende, ellatrix, spacedmonkey, azaozz.
git-svn-id: https://develop.svn.wordpress.org/trunk@48291 602fd350-edb4-49c9-b593-d223f7449a82
