Add support for Italian

Problem/Motivation

NLP models shipped with mkalkbrenner/solarium-nlp package doesn't support Italian.

Proposed resolution

Add 1.9.3 version NLP models to mkalkbrenner/solarium-nlp (see https://opennlp.apache.org/models.html)

Remaining tasks

* Add NLP models 1.9.3 to mkalkbrenner/solarium-nlp package.

Related issue on GITHUB: https://github.com/mkalkbrenner/solarium-nlp/issues/1