Add go sdk for attestation

[ArcturusZhang]

Latest improvements:

MSFT employees can try out our new experience at OpenAPI Hub - one location for using our validation tools and finding your workflow.

Contribution checklist:

• I have reviewed the documentation for the workflow.
• Validation tools were run on swagger spec(s) and have all been fixed in this PR.
• The OpenAPI Hub was used for checking validation status and next steps.

ARM API Review Checklist

• Service team MUST add the "WaitForARMFeedback" label if the management plane API changes fall into one of the below categories.
• adding/removing APIs.
• adding/removing properties.
• adding/removing API-version.
• adding a new service in Azure.

Failure to comply may result in delays for manifest application. Note this does not apply to data plane APIs.

• If you are blocked on ARM review and want to get the PR merged urgently, please get the ARM oncall for reviews (RP Manifest Approvers team under Azure Resource Manager service) from IcM and reach out to them.
  Please follow the link to find more details on API review process.

[azure-pipelines]

Azure Pipelines successfully started running 1 pipeline(s).

[openapi-sdkautomation]

azure-sdk-for-java - Release

No readme.md specification configuration files were found that are associated with the files modified in this pull request, or swagger_to_sdk section in readme.md is not configured

[openapi-sdkautomation]

azure-sdk-for-js - Release

No readme.md specification configuration files were found that are associated with the files modified in this pull request, or swagger_to_sdk section in readme.md is not configured

[openapi-sdkautomation]

azure-sdk-for-net - Release

️✔️ succeeded [Logs] [Expand Details]

• ️✔️ Generate from 989084f with merge commit aedb9b6. SDK Automation 13.0.17.20191226.1

  [AutoRest] realpath(): Permission denied
  [AutoRest] realpath(): Permission denied
  [AutoRest] realpath(): Permission denied
  [AutoRest] realpath(): Permission denied
  [AutoRest] realpath(): Permission denied
  [AutoRest] realpath(): Permission denied

• ️✔️Microsoft.Azure.Management.Attestation [Logs]  [Release SDK Changes]
  • Microsoft.Azure.Management.Attestation.0.10.0-preview.nupkg
  • Microsoft.Azure.Management.Attestation.0.10.0-preview.snupkg

[openapi-sdkautomation]

azure-sdk-for-go - Release

️✔️ succeeded [Logs] [Expand Details]

• ️✔️ Generate from 989084f with merge commit aedb9b6. SDK Automation 13.0.17.20191226.1
• ️✔️preview/attestation/mgmt/2018-09-01-preview [Logs]  [Release SDK Changes]
  • preview.attestation.mgmt.2018-09-01-preview.zip

[openapi-sdkautomation]

azure-sdk-for-python - Release

⚠️ warning [Logs] [Expand Details]

• ⚠️ Generate from 989084f with merge commit aedb9b6. SDK Automation 13.0.17.20191226.1

  Failed to find any diff after autorest so no changed packages was found.