Add experimental Docker Stack CLI commands

[dnephin]

Adds experimental stack commands for deploying a bundle

[duglin]

@dnephin where can we read up on this feature?

[icecrime]

@duglin I'm going to try and write a doc page today, sorry for the delay!

[mlaventure]

Can we have // +build experimental added to all the new stack files to avoid compiling them when building the non experimental version?

[dnephin]

@mlaventure done

[mlaventure]

can't we just append those in the networks []string variable from the get go here?

I'm not sure what is the benefit of going through an intermediate map first.

[mlaventure]

Scratch that, I read the function name afterwards :)

[dnephin]

Ya, I don't know if there is a better way to do this in go.

[mlaventure]

LGTM (IANAM)

Only nitpick I've got is:

func getNetworks(
    ctx context.Context,
    apiclient client.APIClient,
    namespace string,
 ) ([]types.NetworkResource, error) {
    return apiclient.NetworkList(
        ctx,
        types.NetworkListOptions{Filters: getStackFilter(namespace)})
 }

we have no other code with the above style as we don't enforce the 80 columns rule

[icecrime]

Added some docs in #23544.

[icecrime]

LGTM 👍

[vieux]

Mush better with some docs thanks @icecrime

LGTM

[cpuguy83]

LGTM moving to docs

[icecrime]

So @thaJeztah is on a plane, and this is experimental, soooooooo... 😇