This adds a separate `AdvancedTimer` class that demonstrates a few more
advanced concepts usch as custom handlers for printing and attributes.
Signed-off-by: Laurens Valk <laurens@pybricks.com>
Now that the Timer class has been merged in a separate pull request,
this can be added to the module test too.
Signed-off-by: Laurens Valk <laurens@pybricks.com>