Description of problem:
Creation of a compute resource with hammer cli seems not possible as there is no way to look up the datacenter uuid. Within the GUI there is a button to reload the datacenters. Also it seems it is necessary to provide the URL, but according to the help text one should provide "--server".


How reproducible:
 hammer compute-resource create --help
Usage:
    hammer compute-resource create [OPTIONS]

Options:
    --description DESCRIPTION      
    --name NAME                    
    --password PASSWORD           Password for RHEV, EC2, Vmware, Openstack. Secret key for EC2
    --provider PROVIDER           Providers include Libvirt, Ovirt, EC2, Vmware, Openstack, Rackspace, GCE
    --region REGION               for EC2 only
    --server SERVER               for Vmware
    --tenant TENANT               for Openstack only
    --url URL                     URL for Libvirt, RHEV, and Openstack
    --user USER                   Username for RHEV, EC2, Vmware, Openstack. Access Key for EC2.
    --uuid UUID                   for RHEV, Vmware Datacenter
    -h, --help                    print help


Steps to Reproduce:
1. hammer compute-resource create --name="myvcenter.example.com" --user="VM_WARE_USER" --provider="VMWare" --url="vcsrv.example.com" --password="SOME_PASS" --description="Prod VCenter" --server="vcsrv.example.com"

Actual results:
Could not create the compute resource:
  Datacenter