add wiretrustee LOGIN command (#90)

* feature: add wiretrustee LOGIN command

* chore: add management initial connection timeout

* test: add login cmd test

* test: validate generated config in login cmd

* test: add up command test

* chore: add timeout to signal client creation method

* test: close wireguard interface once test finished

client/cmd/service_controller.go

@@ -9,7 +9,13 @@ import (
 func (p *program) Start(s service.Service) error {
 	// Start should not block. Do the actual work async.
 	log.Info("starting service") //nolint
-	go upCmd.Run(p.cmd, p.args)
+	go func() {
+		err := upCmd.RunE(p.cmd, p.args)
+		if err != nil {
+			return
+		}
+
+	}()
 	return nil
 }