add reasons for removing WatchFlags to the CHANGELOG
add reasons for removing WatchFlags to the CHANGELOG

treejames/fsnotify,jsix/fsnotify,fsnotify/fsnotify,beni55/fsnotify,scalingdata/fsnotify-v1,fsnotify/fsnotify,mingshun/fsnotify,qida/fsnotify,fsnotify/fsnotify,omeid/fsnotify