This uses the more modern issue template mechanism of GitHub.
Users will be able to choose one of these after clicking "add issue".
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The template for tuning is reworded to reflect that tuning issues are
not guaranteed to be handled by maintainers.
Signed-off-by: Michael Grupp <grupp@magazino.eu>
So far it creates statistics over timing information of the sensor data that Cartographer cares about. It also reports if time jumps backwards for a sensor.
Also updates the GitHub issue template to ask users to run this binary when reporting issues.
I verified that this tool is sufficient to analyze all the timing related issues mentioned in #529.