Should poll long running operation when the first response is 200

[isra-fel]

Current behavior

When requesting a long running operation (LRO), if the response is 200 OK, generated code will not start polling. For example:

https://github.com/Azure/azure-powershell/blob/58ca05dc9185895a19c6cedbb92c5e54546daa8a/src/Databricks/generated/api/Databricks.cs#L1204

This may cause some cmdlets to return early with the resource not fully provisioned.

Expected behavior

The cmdlet should start polling until the resource has successfully been provisioned.

[isra-fel]

According to https://github.com/Azure/azure-resource-manager-rpc/blob/master/v1.0/Addendum.md#creatingupdating-using-put
If the request is a PUT we should expect a 201 Created or 200 OK, otherwise it should be 202 Accepted.
But now we are just expecting 201 and 202 for all HTTP methods. We'll need to re-design the logic.

• Option 1: Simply start polling if the response is 200/201/202
• Option 2: Different logic for different HTTP methods