Add catch-all parameter to test resources script

[benbp]

This updates the New-TestResources.ps1 script to not fail when extra unused parameters are passed in. This prevents the script from breaking if new keys/values are added to the subscription config object in keyvault (which gets splatted onto the script parameters here). Currently this is a problem with historical versions of the script that get run as part of a backport to a hotfix/release branch, where the old version of the script is not compatible with the subscription configuration parameters.

For example, the addition of ProvisionerApplicationOid here is causing issues for live test pipeline runs using eng/common code older than the change as the parameter was also added to the subscription configuration.

[azure-sdk]

The following pipelines have been queued for testing:
java - template
java - template - tests
js - template
net - template
net - template - tests
python - template
python - template - tests
You can sign off on the approval gate to test the release stage of each pipeline.
See eng/common workflow

[ghost]

Hello @azure-sdk!

Because this pull request has the auto-merge label, I will be glad to assist with helping to merge this pull request once all check-in policies pass.

p.s. you can customize the way I help with merging this pull request, such as holding this pull request until a specific person approves. Simply @mention me (@msftbot) and give me an instruction to get started! Learn more here.