Derive Macro PlanningSolutionImpl 

#[derive(PlanningSolutionImpl)]
{
    // Attributes available to this derive:
    #[planning_entity_collection]
    #[problem_fact_collection]
    #[planning_score]
    #[value_range_provider]
    #[shadow_variable_updates]
    #[basic_variable_config]
    #[solverforge_constraints_path]
}