Unused Concepts don't show up in the union type

If you create a Condition but don't use it in the evaluator, it breaks the resulting LudiekCondition union. It seems there needs to be at least a public method on the LudiekEvaluator that uses Condition as an argument for it to end up in the final union.

This is a very dangerous bug as any consuming concept can completely break the type system, leading to hard to debug situations