Add setup arguments to enable specifying alt tenants on the CLI

[bmc-msft]

This enables specifying the endpoint configuration for alternate tenants purely on the command line.

Previously, on a single tenant you could use the following:

onefuzz --endpoint https://INSTANCE.azurewebsites.net info get

For multi-tenant installs, we need to expose more than just endpoint.

This enables:

onefuzz --endpoint https://INSTANCE.azurewebsites.net --client_id CLIENT_ID  --authority https://login.microsoftonline.com/common --tenant_domain TENANT_DOMAIN info get

[ghost]

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