Add New CloudService Resource in Azure SDK

[ashvermamsft]

We already have a merged PR Azure/azure-rest-api-specs#11704 for swagger changes, and a follow up PR Azure/azure-rest-api-specs#11950 to update the json files for the version package-2020-10-01-preview. We are starting this PR to merge the SDK changes.

itr1:

Generated Model and Operations files from swagger (using public repo)
Added tests for clousServices resource
Added session records and metadata files

[ashvermamsft]

@markcowl @grizzlytheodore please help with the review

[markcowl]

/azp run net - compute - ci

[azure-pipelines]

Azure Pipelines successfully started running 1 pipeline(s).

[markcowl]

Some breaking changes that need to be corrected, I think each can be fixed with simple customizations.

Also, you need to include the file generated by the generation script in /eng.

[ashvermamsft]

Some breaking changes that need to be corrected, I think each can be fixed with simple customizations.

Also, you need to include the file generated by the generation script in /eng.

@markcowl These files has been generated by autorest tool using the last published swagger json (i.e. 30-06-2020). By Customization Do you mean we can modify the generated files? I haven't modified any generated files and have added only tests. Let me know if update in the generated file is allowed, will make the changes
About the metadat file from generation script, will include once the swagger PR is merged, and generation is done from there.

[ashvermamsft]

@markcowl as @JeffreyRichter have approved the changes in this rest api pr (Azure/azure-rest-api-specs#10745) , Can you please help in merging this PR? Please let me know if any additional steps are required to merge this PR.

[bquantump]

Please look into CI failures or we will close this.

[ashvermamsft]

@markcowl / @allenjzhang / !@bquantump In the latest iteration I have generated the full SDK from swagger repo master branch (using generate.ps1), haven't done any altering with the generated code, but still see the CI failure. Have included the metadata file as well. Any action/resolution needed from my end?

[markcowl]

@ashvermamsft According to the logs, there are changes in the following files when it generates from the master branch:
sdk/compute/Microsoft.Azure.Management.Compute/src/Generated/Models/DedicatedHost.cs
sdk/compute/Microsoft.Azure.Management.Compute/src/Generated/Models/DedicatedHostUpdate.cs
sdk/compute/Microsoft.Azure.Management.Compute/src/Generated/Models/RollingUpgradePolicy.cs
sdk/compute/Microsoft.Azure.Management.Compute/src/Generated/SdkInfo_ComputeManagementClient.cs

that are not reflected in this PR. This could mean that either these files were changed but not included in the PR, that generation did not occur from the latest commit in master, or that there is an issue with the comparison. If you can rule out (1) and (2), we cna look at (3)

[allenjzhang]

I did verification on the discrepancy, things look good. Merging.

[Sandido]

Includes the work for:
https://github.com/Azure/azure-sdk-for-net/pull/17957/files
Azure/azure-rest-api-specs#11202
Azure/azure-rest-api-specs#12521