Support timeout comparison in Query App
Use the developing similar jobs query support to help test writers identify timeout issues.
Provide notes on using queries to compare with similar jobs and identify suitable timeouts as well as how queries can be used to identify jobs which have excessive timeouts.
Provide unit tests which create a mix of jobs and check that the matches are reproducible and correct.
Migrated from https://projects.linaro.org/browse/LAVA-411