[JCLOUDS-702] JCloud ProfitBricks provider implementation

Hi! This implements most of ProfitBrick's API. I look forward for your comments, suggestions, and revisions.
Now that's a difficult one. Haha! My goal for this enum is just determine which "virtual items" in profitbricks has a property of "provisioningStatus", which is used at <code>ProvisioningStatusPollingPredicate</code>. Will <code>ProvisioningStatusAwareVirtualItems</code> better?