Add pass/fail tests for events with undefined stream IDs

Add pass/fail tests for events with undefined stream IDs

It's valid to have events not specify a stream ID, but only if:

* There are only unspecified-stream events in the trace, or
* Only stream_id 0 is used in other events.

In this case, all events are considered as being part of stream 0.

If there are other stream IDs defined, then all events should
specify their own.

Signed-off-by: Alexandre Montplaisir <alexmonthy@voxpopuli.im>
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>