Release v4.10.0

• fix Option::fold and Either::fold signatures.
• add Option::toArrayList cast method.

>>> Option::some(1)
    ->toArrayList(ArrayList::singleton(...))
    ->toArray();
=> [1]

>>> Option::some([1])
    ->toArrayList(ArrayList::collect(...))
    ->toArray();
=> [1]

>>> Option::none()
    ->toArrayList(ArrayList::collect(...))
    ->toArray();
=> []