* [Related to #11292] Safe Metadata Upload
- Created FILE_METADATA_ALLOWLIST
- Added test library for `FilesService`
* Rename ALLOWLIST->ALLOW_LIST to be consistent with other env vars
* Make sure it still works for files without Exif
* Prevent breaking changes in metadata formatting
* Allow * for all
* Fix md sup
Co-authored-by: rijkvanzanten <rijkvanzanten@me.com>
