Azure:Cloud Service stood up for every VM?

I'm running PerfkitBenchmarker against Microsoft Azure, and I'm noticing the system creates a cloud service _for every VM it stands up_. This is not a realistic use of the cloud service. In Azure, Cloud Service is similar to a GCE "Project." In fact, I would suggest that the behavior against Azure be modified such that if the user specifies a --project parameter at runtime, that you use it just like you would for GCP - to put all the VMs for the benchmarks into a cloud service with that name. Otherwise, I would recommend that a cloud service only be stood up against the run-id, and not for every VM.