Release v2023.3.1

• switched to lightgbm4j 3.3.2-5
• compressing model with gzip now to make serialized models smaller
• setting num_class now for multi-class datasets
• multiclass/ova is now allowed for binary classes as well

Release v2023.2.10

• initial release
• based on lightgbm4j v3.3.2-4