CodeGen from PR 17252 in Azure/azure-rest-api-specs

[Hub Generated] Review request for Microsoft.SqlVirtualMachine to add version preview/2021-11-01-preview (#17252)

* Adds base for updating Microsoft.SqlVirtualMachine from version preview/2017-03-01-preview to version 2021-11-01-preview

* Updates readme

* Updates API version in new specs and examples

* add 2021-11-01 swagger

* add missing files, spellcheck, add MAXDOP to custom-words

* prettier check

* fix model validation errors

* fix swagger avocado failures, SDK azure-sdk-for-net failures due to DaysOfWeek

* add system data to AvailabilityGroupListener, SqlVirtualMachineGroup, SqlVirtualMachine

* update list operation for 2021-11-01

* add ms-identifier to address lintdiff R4041

* remove x-ms-identifiers property as it is not available yet on .net sdk

* add SqlVirtualMachines_StartAssessment

* update ResourceIdentity enum from IdentityTypeWithNone to IdentityType

* update list operations json

* prettier check

* re-add ms-identifier to address lintdiff R4041

Author: SDKAuto