File entity update is allowed only for user who has uploaded the file

Problem/Motivation

FileAccessControlHandler does not check permission in case of update using the standard permissions of "edit any files" and "edit own files". Instead it's hardcoded to check for the user who has uploaded the file.

Steps to reproduce

Proposed resolution

The FileAccessControlHandler should check for file edit permissions in the standard way.

Remaining tasks

1. Create new permissions "edit any files" and "edit own files"
2. Adjust the FileAccessControlHandler to respect the assigned permission.
3. Adjust relevant test cases.

User interface changes

API changes

Data model changes

Release notes snippet