Support for List<T> on Converters

[brunobat]

This is a suggestion to add support to convert List of objects to the Converters API interface.
Probably it should be Collection, but lists are simpler for a first version.

[dmlloyd]

Are you thinking as a general API enhancement? Because support exists in the implementation class io.smallrye.converters.Converters#newCollectionConverter.

[brunobat]

Yes, as an enhancement. Lists are everywhere and supporting them out of the box would be handy.