Goal: Implement a generic `TupleToUnion<T>` which covers the values of a tuple to its values union. For example: Source challenge: https://github.com/type-challenges/type-challenges/tree/main/questions/00010-medium-tuple-to-union Reference explanation: https://github.com/ghaiklor/type-challenges-solutions/blob/main/en/medium-tuple-to-union.md