mutate admin: select mutants at time interval

[christoffer-nylen]

Assume:

1. Mutation testing has been executing successfully during 2019-09-11 from 8.00 to 17.00
2. Mutation score during that time was 0.5
3. There is a problem with the test environment 17.00 (e.g., failing debug probe)
4. The mutation testing continues to mutate 100:s of mutants and report them all as "alive" until 07.30 the next day.

Scenario:

The user would like to reset the alive mutants reported after 2019-09-11, 17.00, but keep the alive mutants from from 8.00 to 17.00.

Problem:

By resetting all alive mutants, 50% of the work performed 2019-09-11 between 8.00 to 17.00 gets lost..

Suggestion:

Add a feature to let the user specify mutants using a time interval (e.g., reset all alive mutants after the test envrionment started to fail).

Example:

dextool mutate admin --mutant lcr --operation resetMutant --status alive --from 2019-09-10 17:00:00