Add wait/no-wait support to Commands

[tjprescott]

PR #1463 added support for the ... wait command for select command groups and the --no-wait option for several long-running operations in those groups. This issue is for identifying and tracking which commands still need this functionality exposed. Please nominate additional commands to be given wait/no-wait capability in the comments.

Needed

• acr repository delete
• postgres server firewall-rule create/delete
• provider register [issue az provider register should provide wait / no-wait #1910] (from @yugangw-msft we probably can live with it, as it is not a common op)
• storage file|blob copy (i.e. wait until a copy operation is finished) [issue [Storage] Retrieving blob copy status #1787]

Completed

• sql server create (PR [SQL] Add wait/no-wait support for SQL server command group #9022)
• cdn endpoint purge (PR [CDN] Add --no-wait support to CDN endpoint commands. #8792)
• container start/restart (PR [Container] Support --no-wait on container start/restart. #8600)
• snapshot create (PR [Snapshot] Add wait/no-wait support for snapshots. #7836)
• local-gateway create/update/delete (PR Add wait commands and --no-wait support #2524)
• express-route create/update/delete (PR Add wait commands and --no-wait support #2524)
• vnet-gateway create/update/delete (PR Add wait commands and --no-wait support #2524)
• vmss create/update/delete/start/stop/deallocate/... (PR Add wait commands and --no-wait support #2524)
• vm delete/deallocate/start/stop/... (PR Add wait commands and --no-wait support #2524)
• vm user (PR Add wait commands and --no-wait support #2524)
• vm create/update (PR Support Wait/No-Wait #1463)
• group delete (PR Support Wait/No-Wait #1463)
• group deployment create (PR Support Wait/No-Wait #1463)
• application-gateway create/update/delete (PR Support Wait/No-Wait #1463)
• vnet-gateway create/update (PR Support Wait/No-Wait #1463)
• az disk commands (PR Add wait/no-wait support to "az disk" commands. #3390)
• network nic create (PR Add --no-wait support to various commands #6684)
• vm extension set (PR Add --no-wait support to various commands #6684)
• group deployment delete (PR Add --no-wait support to various commands #6684)

[derekbekoe]

This is needed for end of Sprint 12 right?
cc: @johanste, @yugangw-msft

[derekbekoe]

Removed milestone as this is an additive change.

[tjprescott]

I would think this is not really a GA-mandatory item. It would simply be an additive feature we can incrementally roll out over time. This issue is to track those items for which it would be nice to have.

[yangl900]

Please add support for "az vm access" as well, the command took minutes to complete, it's practically not possible to manage large set of VMs without --no-wait.