Add turf intersect feature for polygonal intersection

I would like to propose a new feature for turf java, namely polygonal intersection, which is as explained in the turf doc as a method that:

Takes two polygon or multi-polygon geometries and finds their polygonal intersection. If they don't intersect, returns null.

It might help on various occasions while dealing with area-specific features on Android apps, for example, intersecting camera bounds with certain polygons can make a huge deal in making area-aware functionalities.

While looking for such a solution I've encountered geok library:
https://github.com/piruin/geok - written in Kotlin, that apparently achieves this goal, so maybe it may be some kind of inspiration.

まず、issue に記載された Turf の交差処理の挙動と、ポリゴンおよびマルチポリゴンを扱うリンク先の geok ライブラリを確認します。2 つのサポート対象ジオメトリに対してポリゴンの交差を提供し、交差しない場合は null を返し、代表的な Android のユースケースに対して挙動を確認できれば完了です。