Add aliases for options of final_internal_class fixer

[a-menshchikov]

Now options contain dashes what prevents to use this fixer in EasyCodingStandard (which replaces dashes with underscores).
To resolve this problem options of final_internal_class should be aliased with values, where dashes will be replaced with underscores.

[SpacePossum]

👍
we should also update the auto review tests to no longer allow dashes in the names of options (and possible other characters as well)

[kubawerlos]

@a-menshchikov this will be solved with the release of 2.17, it's already merged: #4634

[julienfalque]

Indeed, totally forgot about this.