[TYPO3-core] FYI72 #15221: Add hook to postprocess upload of a file

[Xavier Perseguers]

Hi Steffen,

> thanks for this extension! I really need that for photo galeries where
> editors upload complete CDs of photos, all from digital cameras. It took
> me a long time to postedit them, but now the task is easy and automatic :)
>
> I really can suggest this extension to all of you!

Thanks!

> btw - have to test with flashloader too.

I tested it successfully there too.

Xavier