History: File Gallery - Direct Mapping

New in Tiki25: It is now possible to map a Tiki File Gallery to a local folder or remote folder via league/flysystem, permitting (S)FTP, WebDAV, S3, etc. This is in contrast to the default mode, which is a virtual file system (File and folders and all their meta-data are fully managed within Tiki).

Initial commit: https://gitlab.com/tikiwiki/tiki/-/merge_requests/1904/diffs