4.3.0

1. IterativeAlgorithmController to monitor training progress and early stop.
2. Refactor learning algorithm hyperparameters with record Options
3. Refactor partitioning clustering algorithms
4. Rename CLARANS to KMedoids
5. SpectralClustering for sparse feature count matrix with cosine similarity.
6. Move lambda function interface into smile.util.function package
7. Update scala code to Scala 3 syntax
8. block quote representation for LLM reasoning block
9. Add --host and --port options for inference endpoint
10. Add --line option to render inference output JSON objects in a line-by-line fashion
11. gradle build scripts