providers/cloudstack: initial commit

First stab at a fully functional CloudStack provider. Needs just a
little more work and some tests before it can be put into a PR.
Adding first tests for cloudstack_instance
providers/cloudstack: initial commit

First stab at a fully functional CloudStack provider. Needs just a
little more work and some tests before it can be put into a PR.
Adding first tests for cloudstack_instance
Merge branch 'f-cloudstack-provider' of https://github.com/svanharmelen/terraform into f-cloudstack-provider
Merge pull request #15 from svanharmelen/f-cloudstack-provider

F cloudstack provider