[Core] JVM 19 new feature: FFI

### Description

A good summary from RocksDB: https://rocksdb.org/blog/2024/02/20/foreign-function-interface.html

Looks it can simplify the JNI call. Let's mark it here and talk more later

Start by reading the linked RocksDB foreign-function-interface summary and comparing its JVM 19 FFI approach with Gluten's current JNI integration. No source files, tests, or concrete acceptance criteria are identified; done would require an agreed scope and implementation plan before coding can begin.

Written by the indexing model from the issue text.