Add a feature to return the directories and files that are being monitored

[NitroCao]

What does this pull request do?

Add a method for Watcher to return the directories and files that are being monitored.

Where should the reviewer start?

WatchList method in inotify.go.

How should this be manually tested?

unit testing in inotify_test.go.

[PaluMacil]

Looks appropriate and tested

[nathany]

Thanks for the contribution.

Unfortunately we can't add a new WatchList() API that only works on Linux.

fsnotify is a cross-platform library. If we want to add WatchList(), it must also be added for macOS/BSD (kqueue) and Windows.

[mattn]

@NitroCao Would you update this?

[chamabreu]

Hi, is this feature comming?

[NitroCao]

Sorry for the long delay. Just added support for bsd and windows platforms.

[mattn]

@nathany do you have opinion others?

[nathany]

LGTM

[mattn]

Thanks. I want to confirm rules for mainteners. Only administrators have to merge this? (I know I can merge this)

[nathany]

Looks like there is a problem with Hound

[nathany]

I removed Hound and the branch protection rule that required it.

[NitroCao]

So can we merge this PR now?

[mattn]

Thank you

[nathany]

thanks @mattn

I see there is a 1.5.3 tag that was created before the 1.5.2 tag for this. Will that cause problems getting this update?

[mattn]

OpenBSD build was broken since before. #443