Add start attribute interface

Signed-off-by: Christoph Höger <christoph.hoeger@tu-berlin.de>
Add simulation time interface

Signed-off-by: Christoph Höger <christoph.hoeger@tu-berlin.de>
Add time to public interface

Signed-off-by: Christoph Höger <christoph.hoeger@tu-berlin.de>
Convert to new style

Signed-off-by: Christoph Höger <christoph.hoeger@tu-berlin.de>
(Somewhat) fix examples to new style

Signed-off-by: Christoph Höger <christoph.hoeger@tu-berlin.de>
Renovation of sim - module

Needs reinit, though

Signed-off-by: Christoph Höger <christoph.hoeger@tu-berlin.de>