Add integration test for restartVPC with cleanup, and Private Gateway enabled.
Add integration test for restartVPC with cleanup, and Private Gateway enabled.

GabrielBrascher/cloudstack,jcshen007/cloudstack,wido/cloudstack,jcshen007/cloudstack,wido/cloudstack,GabrielBrascher/cloudstack,wido/cloudstack,resmo/cloudstack,GabrielBrascher/cloudstack,jcshen007/cloudstack,GabrielBrascher/cloudstack,wido/cloudstack,DaanHoogland/cloudstack,DaanHoogland/cloudstack,wido/cloudstack,DaanHoogland/cloudstack,jcshen007/cloudstack,resmo/cloudstack,GabrielBrascher/cloudstack,resmo/cloudstack,resmo/cloudstack,resmo/cloudstack,DaanHoogland/cloudstack,GabrielBrascher/cloudstack,DaanHoogland/cloudstack,jcshen007/cloudstack,wido/cloudstack,jcshen007/cloudstack,resmo/cloudstack,DaanHoogland/cloudstack,wido/cloudstack,DaanHoogland/cloudstack,resmo/cloudstack,jcshen007/cloudstack,GabrielBrascher/cloudstack