Blender 2.80 Addon to collect all used external files from a project
Append menu Collect External Files to External data File menu.
Creates blends_ressources folder in root of main blend file with next structure:
*scene name*_allfiles__*date*_report.txt - text file
Subfolders:
Images
Movie Clips
Blend Libraries - linked blend files
Sequencer Strips
Fonts
Relocate collected data in main project file.