OC-10521 knife-cloud: knife openstack should support summary display during create and new command 

Added changes to display server summary during server create.
Fixed functional tests.
Integration tests are pending...
It depends on https://github.com/ClogenyTechnologies/knife-cloud/pull/6 for knife-cloud changes.
PBI ref: https://tickets.corp.opscode.com/browse/OC-10521

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