Use let/subject in VmOrchestrator tests
Use let/subject in VmOrchestrator tests

To de-dupe some setup and make tests more succinct.

UKHomeOffice/vcloud-launcher,gds-operations/vcloud-launcher,gds-operations/vcloud-launcher,gds-operations/vcloud-launcher,UKHomeOffice/vcloud-launcher,UKHomeOffice/vcloud-launcher