Implement Matcher and Filter that processes also array members.

[trebi]

For now, filter applies only on property of an object. But for filter PropertyByTypeFilter, it would be more consistent, if its applies on all existing instances of specified type that appears inside copied elemnt, so not just object properties, but also members of arrays, or copied object itself (i.e. $deepCopy->clone(\Mockery::mock(MySuperClass::class)).

This is particullary useful to configure DeepCopy to skip all mocked instances (I'm using Mockery), which oviously, DeepCopy fails to clone.

[mnapoli]

I'm not sure it would make sense to change the behavior of PropertyByTypeFilter. Maybe it would be better to add another filter? E.g. PropertyContainsType or something like this?