Support automatic derivation of Trials<X> for a structured X in Java.

[sageserpent-open]

On the Scala side, there is already support for automatic derivation of Trials[X] where X is some algebraic data type that heads a hierarchy of sum and product types - courtesy of Magnolia - nice job there.

What we lack is the same experience on the Java side - and for that matter for classes in Scala that are not sum / product types, ie. 'conventional OO classes in Scala'.

One approach would be to use the public constructors of X to guide the assembly of a Trials<X>, using a mixture of reflection and ByteBuddy for the implementation.

Ideally this should work for both Java and Scala code, although Java is the priority here.