[TestResources] Update `New-TestResources` script to properly purge all resource types

Specifically:

- [Here's an example pipeline run that had fails, triggering resource group cleanup](https://dev.azure.com/azure-sdk/internal/_build/results?buildId=2881319&view=logs&j=6a63819b-7a2b-5822-20b8-99873e0c172b&t=8618283b-89ad-5254-c981-19bb776acdad&l=18).
- Note that in the log above, there are _no_ outputs for `purging` of the resources.
- This is because this resource type is doesn't _implement_ the purge in the testresources script

This issue covers

- [ ] Adding detection of a [few additional purgeable resources](github.com/Azure/azure-sdk-tools/blob/a0d9a0f1ce200d78a49d3dd08dd9785db0a587b5/eng/scripts/live-test-resource-cleanup.ps1#L361).
- [ ] And implementing the cleanup [here](https://github.com/Azure/azure-sdk-tools/blob/a0d9a0f1ce200d78a49d3dd08dd9785db0a587b5/eng/scripts/live-test-resource-cleanup.ps1#L361)

Resources under constraint:

- [ ] Cosmos DB
- [ ] Text Analytics Service Bus