feat(vm_image_util): CloudStack support
feat(vm_image_util): CloudStack support

Provide initial support for CloudStack.

trnubo/scripts,gtank/scripts,vmware/coreos-scripts,endocode/scripts,vmware/coreos-scripts,andrejro/coreos--scripts,andrejro/coreos--scripts,nicescale/scripts,BugRoger/scripts,fivethreeo/scripts,trnubo/scripts,fivethreeo/scripts,marineam/coreos-scripts,coreos/scripts,andrejro/coreos--scripts,endocode/scripts,zhang0137/scripts,smilart/scripts,BugRoger/scripts,mischief/scripts,nicescale/scripts,mjg59/scripts,gtank/scripts,trnubo/scripts,zhang0137/scripts,smilart/scripts,coreos/scripts,vmware/coreos-scripts,zhang0137/scripts,glevand/coreos--scripts,mjg59/scripts,smilart/scripts,mischief/scripts,gtank/scripts,marineam/coreos-scripts,marineam/coreos-scripts,sigma/coreos-scripts,mjg59/scripts,glevand/coreos--scripts,sigma/coreos-scripts,endocode/scripts,mischief/scripts,BugRoger/scripts,sigma/coreos-scripts,nicescale/scripts,fivethreeo/scripts