DaggerMock integration

[JorisPotier]

Because I am not satisfied with the current implementation of our module overriding in tests, this lib could be interesting to remove boilerplate : DaggerMock

[rlucas1]

+1

[CedricGatay]

👍 can be interesting if we force ourselves to use the latest code style in the readme. This way we dodge the mess created by anonymous classes.

[mattboll]

+1

[bbbenja]

👍