The config key from eu07/maszyna#541. By default (yes) a pass reported to
__test.result waits until every vehicle has stood still for 1 s; with no it
ends the test at once. The key is listed with the other test.* settings in the
log and in the test start line.
Scenario tests: new case test_mode_pass_while_moving reports the pass from
event2 of tor1k as the train runs onto it and checks the run ended with the
train still moving (new check ends_moving). The README lists the test.* keys
with their defaults and the input the test mode ignores.