machines: Add abstraction of deleting any object
machines: Add abstraction of deleting any object

Pull deletion dialog into universal component which can be reused
for any kind of object (NIC, disk, storage pool...)

cockpituous/cockpit,moraleslazaro/cockpit,deryni/cockpit,moraleslazaro/cockpit,deryni/cockpit,cockpit-project/cockpit,mvollmer/cockpit,garrett/cockpit,moraleslazaro/cockpit,mvollmer/cockpit,deryni/cockpit,cockpituous/cockpit,garrett/cockpit,martinpitt/cockpit,martinpitt/cockpit,cockpit-project/cockpit,martinpitt/cockpit,garrett/cockpit,deryni/cockpit,moraleslazaro/cockpit,mvollmer/cockpit,martinpitt/cockpit,deryni/cockpit,cockpituous/cockpit,cockpituous/cockpit,garrett/cockpit,moraleslazaro/cockpit,cockpituous/cockpit,mvollmer/cockpit,deryni/cockpit,cockpit-project/cockpit,moraleslazaro/cockpit,mvollmer/cockpit,moraleslazaro/cockpit,cockpit-project/cockpit,martinpitt/cockpit,cockpituous/cockpit,deryni/cockpit,cockpit-project/cockpit,garrett/cockpit