Add missing REST methods

[lestrrat]

List of currently unimplemented REST methods.
They are only unimplemented because the author had no immediate need for them.

Please either:

1. Send a PR that implements the method (yay! ❤️ you!)
2. Send a PR with a failing test case (pretend the method exists) 😍
3. File a separate issue so I know which methods are needed more urgently 🍺

---

• bots.info
• channels.archive
• channels.create
• channels.invite
• channels.join
• channels.kick
• channels.leave
• channels.mark
• channels.rename
• channels.replies
• channels.setPurpose
• channels.setTopic
• channels.unarchive
• chat.unfurl
• dnd.endDnd
• dnd.endSnooze
• dnd.info
• dnd.teamInfo
• emoji.list
• files.comments.add
• files.comments.delete
• files.comments.edit
• files.delete
• files.info
• files.list
• files.revokePublicURL
• files.sharedPublicURL
• files.upload
• groups.archive
• groups.close
• groups.create
• groups.createChild
• groups.history
• groups.info
• groups.invite
• groups.kick
• groups.leave
• groups.list
• groups.mark
• groups.open
• groups.rename
• groups.replies
• groups.setPurpose
• groups.setTopic
• groups.unarchive
• im.close
• im.history
• im.list
• im.mark
• im.open
• im.replies
• mpim.close
• mpim.history
• mpim.list
• mpim.mark
• mpim.open
• mpim.replies
• pins.add
• pins.list
• pins.remove
• reminders.add
• reminders.complete
• reminders.delete
• reminders.info
• reminders.list
• search.all
• search.files
• search.messages
• stars.add
• stars.list
• stars.remove
• team.accessLogs
• team.billableInfo
• team.info
• team.integrationLogs
• team.profile.get
• usergroups.create
• usergroups.disable
• usergroups.enable
• usersgroups.list
• usergroups.update
• usergroups.users.list
• usergroups.users.update
• users.deletePhoto
• users.identity
• users.setActive
• users.setPhoto
• users.setPresence
• users.profile.get
• users.profile.set

[inoc603]

I implemented the dialog.open method #45 , which is missing in this list. Would you take look?