{Iot Hub} Add custom nuget package

[anusapan]

Description

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

[wyunchi-ms]

Hi @anusapan , tools/LocalFeed/Microsoft.Azure.Devices.Shared.1.20.1.1.nupkg is not need in this PR, please remove it. And why these two sdk is needed? To fix bug?

[anusapan]

@wyunchi-ms
To enable some feature that is available in the latest nupkg of "Microsoft.Azure.Devices" but it is using Newtonsoft v12+ and in PowerShell, the allowed max version of NewtownSoft is 10.0.3. So to resolve this, I have created a local nupkg of "Microsoft.Azure.Devices" and its dependent SDK ("Microsoft.Azure.Devices.Shared") with allowable serializer version.

[wyunchi-ms]

/azp run

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