Add Java/Kotlin Binding

Add Java/Kotlin language binding to improve project usability and adoption. This can be particularly useful for Android development.

**Implementation (via Rust FFI):**

*   Use JNI.
*   Relevant link: <https://github.com/jni-rs/jni-rs>
*   UniFFI: <https://github.com/mozilla/uniffi-rs>
    *   **UniFFI Supported Languages:** Kotlin, Swift, Python, Ruby, C# (experimental), Go (experimental)