CodeGen from PR 15718 in Azure/azure-rest-api-specs

[Hub Generated] Review request for Microsoft.TimeSeriesInsights to add version preview/2021-03-31-preview (#15718)

* Adds base for updating Microsoft.TimeSeriesInsights from version stable/2020-05-15 to version 2021-03-31-preview

* Updates readme

* Updates API version in new specs and examples

* Add private links resources

* Add examples

* Rename example

* Remove unused example

* fix lintdiff errors

* Fix more linting errors

* Use common privatelinks definitions

* Use common resource type definition

* Add suppression for R4009 lintdiff errors

Author: SDKAuto