Add GPO Template for controlling the upcoming Auto Updater

[JtheBAB]

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Summary
This GPO template allows Windows Domain Administrators to control the upcoming Auto Updater feature. Pull requested by @wget

Now as new branch and not the master branch of my fork.

Issue link
„Fixes“ #873

[yuya-oc]

Sorry for late response.

Would you move files to resource/windows/gpo? scripts/ is a directory of helper scripts for developers. I think .adml and .admx should be distributed for admins (i.e. users), so they should be located under resource.

[yuya-oc]

Just curious, should we have a document about .adml and .admx? (Because I'm merely not familiar with Group Policy.)

[JtheBAB]

About the files --> see https://community.mattermost.com/core/pl/c34howw74frnpd6gkeoxg7eirw

I think it should be part of the docs.mattermost.com

[JtheBAB]

I moved the files.

cc: @wget

[wget]

@JtheBAB great super!

Ping me when you have finished writing instructions for the documentation. That way I'll retest the whole process (I have Windows Server and Clients here). I'm unavailable until this Wednesday January 23th, so you have plenty of time :)

And btw, since you mentioned you were starting to play with GitHub pull requests, just a comment to make. PR always require a rebase. In a pull request, we only merge the modifications everyone has agreed upon. So first revisions (draft) are never included. So the first two commits are not needed and need a rebase :)
But you can leave it as it, because I want to check whether I have right to change YOUR branch since it appears they gave me (partial) commits rights. But I don't know whether this is applicable for this use case or if this only works via third party CI tools.

[wget]

Link to the documentation being written: mattermost/docs#2487

[esethna]

@yuya-oc @JtheBAB @wget are we blocked on anything to get this PR merged?

@yuya-oc what's involved in building the logic to support this?

[wget]

@esethna Actually, I wanted to port all the GPO features and have make a pull request with all of them in one shot instead, but that's okay, we can merge this one.

[JtheBAB]

I am not blocked :)