[TOP] Enhance sync folders

[tobiasKaminsky]

As discussed on conf this is a collaboration between @AndyScherzinger and me.
Purpose:

• Increment 1 - instant upload - Auto Upload (Android 7+) #358 - release 1.4.0 ✔️

  • replace current instant upload
  • full support for Android 6,7

• Increment 2 - enhancement auto upload - Add further media types to auto upload #797 - release 2.0.0 ✔️

  • support video folders
  • allow any kind of folder pair (custom folders)
  • show jobs in upload pane
    • track jobs
    • get job result to update upload pane
    • if job fails: allow user to restart
  • automatic retry
  • upload updated files

• Increment 3 - upload existing files ✔️

  • add "upload/sync all existing images/videos/files" as an option to the auto upload folder three-dot menu.

• Increment 4 - folder upload ✔️

  • allow folder hierarchies
  • smart UI to semi-automatically detect and notify about potential new media folders the user can add/active for instant upload New media detection #2406

• Increment 5 - sync one way

  • sync - one way
  • free up space

• Increment 6 - sync two way

  • sync - two way
  • ref Allow 2-way-sync #19

[aparcar]

Does this include a constant sync of a todo.txt file on change locally and periodically checked on server?

[tobiasKaminsky]

@aparcar currently this will only replace instant upload.
But this approach is designed to also handle a real two way sync and a constant sync of files.