node: optick: fix capture output with multiple outputs

[michaelolbrich]

The raw events are lists with timestamps and state per input. The output contains the state of all the outputs for each timstamp.

The lists must be merged and sorted before adding adding the state of the other inputs for each timestamp. Otherwise an old state value is used and the output is incorrect.

[michaelolbrich]

Commit message fixed and rebased.

[hnez]

Great, thanks!