[Backport 7.9] - Support removing individual files from image upload dialog

When you upload multiple files, the dialog looks corrupted. There is only 1 delete button instead of one for each file.
See screenshot

Steps to reproduce:
1. Login to CMS
2. Navigate to document >> Images >> Anyfolder
3. Access context menu of the folder and select "Add image ..."
4. In the image picker dialog "Add new image to the gallery" click on browse button
5. New OS file picker will open where user should be able to select multiple file for upload

Expected - The files selected in step 5 should be orderly listed in the image picker dialog (refer attachment)
Actual - The files selected makes the UI shabby (refer attachment)

NB: requires javascript knowledge to fix.

Integrate jquery-file-uploads plugin to support removing individual files