Overload all operations (predict, predict_mode, etc) for use on Static machines

[ablaom]

At present only transform is overloaded. In clustering algorithms that do not generalize to new data, such as DBSCAN, we also need predict, for consistency with clustering models that do generalize (as transform is "reserved" for dimension reduction). This PR overloads all operations that can be called on Static models to work for Static machines as well.