Revert "NXP-14810: simplify contribution of ImagePlugin, only use 'application/photoshop' as mime type"

This reverts commit 9c9260c79d952e0d9cc8df14d8da5e04d88ceb70.
NXP-14810: simplify contribution of ImagePlugin, only use 'application/photoshop' as mime type
NXP-14813: cleanup and improve ImageMagick commands: put params
in the right order.

Split the 'resizer' command in 2 calls to convert to avoid issues
resizing and converting at the same time psd or ai files.