Document the EXIF, IPTC, XMP metadata handling #1207
Description
Extend the previous entries in:
https://docs.contao.org/manual/en/file-manager/meta-data/
with features from https://github.com/contao/image/releases/tag/1.2.0
respectively regarding #5837 with information like:
- Feature overview
- Differences between 4.13.x & 5.2.x
- Configuration options etc