Add rootful status to machine inspect

Podman machine inspect now shows if the machine is rootful

Signed-off-by: Ashley Cui <acui@redhat.com>

pkg/machine/config.go

@@ -151,6 +151,7 @@ type InspectInfo struct {
 	SSHConfig          SSHConfig
 	State              Status
 	UserModeNetworking bool
+	Rootful            bool
 }
 
 func (rc RemoteConnectionType) MakeSSHURL(host, path, port, userName string) url.URL {