Adding timestamp to debug command

[ronnicek]

Adding timestamp to debug script.

[ronnicek]

Replace of https://github.com/getumbrel/umbrel/pull/397

[stevenroose]

@ronnicek just a heads up that if you don't have explicit individual approval by all the contributors to this repository to publish your modified source code ("Adapted Material"), you are officially in violation of the license of this project and you can be sued: https://github.com/getumbrel/umbrel/issues/291