[RecoveryServices.Backup]Added support for restoring multiple files/folders in AzureFileShare

[sambitratha]

Description

Added support for restoring multiple files/folders in AzureFileShare

Design review: https://github.com/Azure/azure-powershell-cmdlet-review-pr/issues/508

Checklist

• I have read the Submitting Changes section of CONTRIBUTING.md
• The title of the PR is clear and informative
• The appropriate ChangeLog.md file(s) has been updated:
  • For any service, the ChangeLog.md file can be found at src/{{SERVICE}}/{{SERVICE}}/ChangeLog.md
  • A snippet outlining the change(s) made in the PR should be written under the ## Upcoming Release header -- no new version header should be added
• The PR does not introduce breaking changes
• If applicable, the changes made in the PR have proper test coverage
• For public API changes to cmdlets:
  • a cmdlet design review was approved for the changes in this repository (Microsoft internal only)
  • the markdown help files have been regenerated using the commands listed here

[adxsdkps]

Can one of the admins verify this patch?

[isra-fel]

Hi, please see my inline comments. Besides, could you add an example to restore multiple items? Thanks

[isra-fel]

/azp run azure-powershell - windows-powershell

[azure-pipelines]

Azure Pipelines successfully started running 1 pipeline(s).

[isra-fel]

LGTM!

[isra-fel]

Hi @sambitratha , as #11378 was merged, it introduced some conflicts which blocks automatic merging. Could you resolve the conflicts? Thanks
Btw I don't have the permission to push to your fork.

[sambitratha]

Hi @isra-fel i have force-pushed the branch with conflicts resolved. Please approve

[isra-fel]

LGTM; changing the target branch to release branch