Implement support for the scmMutationCoverage goal

[jontejj]

With mutationCoverage: 2:46:49 PM PIT >> INFO : MINION : 2:46:49 PM PIT >> INFO : Checking environment

2:46:49 PM PIT >> INFO : MINION : 2:46:49 PM PIT >> FINE : Expecting 2 tests classes from parent

2:46:49 PM PIT >> INFO : MINION : 2:46:49 PM PIT >> FINE : Tests classes received

2:46:50 PM PIT >> INFO : MINION : 2:46:50 PM PIT >> FINE : Cucumber detected, scenarios will be used

2:46:50 PM PIT >> INFO : MINION : 2:46:50 PM PIT >> FINE : Found feature "Refund item"

2:46:50 PM PIT >> INFO : MINION : 2:46:50 PM PIT >> FINE : Found "Scenario: Jeff returns a faulty microwave"

2:46:50 PM PIT >> INFO : MINION : 2:46:50 PM PIT >> FINE : Cucumber detected, scenarios will be used

2:46:50 PM PIT >> INFO : MINION : 2:46:50 PM PIT >> INFO : Found 2 tests

2:46:50 PM PIT >> INFO : MINION : 2:46:50 PM PIT >> INFO : Dependency analysis reduced number of potential tests by 0

2:46:50 PM PIT >> INFO : MINION : 2:46:50 PM PIT >> INFO : 2 tests received

2:46:50 PM PIT >> INFO : MINION : 2:46:50 PM PIT >> FINE : Running 2 units

Which looks good and works. But with scmMutationCoverage:

2:46:17 PM PIT >> INFO : MINION : 2:46:17 PM PIT >> INFO : Checking environment

2:46:17 PM PIT >> INFO : MINION : 2:46:17 PM PIT >> FINE : Expecting 0 tests classes from parent

2:46:17 PM PIT >> INFO : MINION : 2:46:17 PM PIT >> FINE : Tests classes received

2:46:17 PM PIT >> INFO : MINION : 2:46:17 PM PIT >> INFO : Found 0 tests

2:46:17 PM PIT >> INFO : MINION : 2:46:17 PM PIT >> INFO : Dependency analysis reduced number of potential tests by 0

2:46:17 PM PIT >> INFO : MINION : 2:46:17 PM PIT >> INFO : 0 tests received

2:46:17 PM PIT >> INFO : MINION : 2:46:17 PM PIT >> FINE : Running 0 units

Even though all the files are newly added to git.