[App Config] Add support for exporting App Configuration references to App Service

[albertofori]

Related command az appconfig kv import az appconfig kv export

Description

1. Adds support for exporting app configuration settings as references to app service. Can be done by adding the flag --export-as-reference or -r when exporting to an app service destination.
2. App Configuration references are skipped when importing configuration settings from app service to App Configuration.

Testing Guide

History Notes

[App Config] Change: az appconfig kv export: Support exporting app configuration settings as references to App Service [App Config] Change: az appconfig kv import: Ensures app configuration references are not imported from App Service

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[yonzhan]

App Config

[zhoxing-ms]

@albertofori Could you please resolve those CI issues?

[zhoxing-ms]

[App Config] Change: az appconfig kv export: Support exporting app configuration settings as references to App Service [App Config] Change: az appconfig kv import: Ensure app configuration references are not imported from App Service

For ordinary changes that are not breaking changes, we do not need to add the Change tag to the PR description/title. I have corrected the PR description

[albertofori]

@albertofori Could you please resolve those CI issues?

@zhoxing-ms Please I just pushed a fix to address the issues, thanks!