Add a mechanism to map a response from a side effect

Current sample:

```csharp
await
from maybeBicicleta in
from bicicleta in _repository.FindByIdAsync(id)
select _mapper.Map(bicicleta).AsMaybe()
select maybeBicicleta.Match(Ok, NotFound());
```

Expected to be used like:

```csharp
await
from maybeBicicleta in new Maybe(id).AwaitSideEffect(_repository.FindByIdAsync)
// Add Map overload that works with Maybe
from _mapper.Map(maybeBicicleta)
select maybeBicicleta.Match(Ok, NotFound());
```