SentencePiece4J released for java devs

[eix128]

Google has sentencepiece but its written in C++ and
java side requires jni and its not that much portable
So we have added opensource SentencePiece4J thats all pure java and more portable.
You can checkout all code :
(https://github.com/eix128/SentencePiece4J)](https://github.com/eix128/SentencePiece4J)

We have added maven support also:
https://mvnrepository.com/artifact/io.github.eix128/sentencepiece4j

IF anyone interested in including sd4j project we try our best to support...