Support for New Fanotify APIs/Flags

[kkysen]

I noticed there's no support for some newer fanotify APIs, like FAN_MARK_FILESYSTEM for MarkFlags, and FAN_CREATE, FAN_DELETE, FAN_MOVED_FROM, FAN_MOVED_TO, etc. for MarkEventFlags. Could you add these flags? Or can I submit a pull request for all the missing flags?

[raphaelcohn]

@kkysen I no longer maintain this crate, but I've reworked the support into my linux-support crate.

[kkysen]

@raphaelcohn That's great. I'm working on a more idiomatic, complete, and type-safe fanotify wrapper myself now, but linux-support seems very extensive. Do you think you could put in the README.md that this crate is no longer actively maintained, but development has mostly switched to linux-support?