Working database - no configuration files

SQLLite databases, OpenNLP models and stopwords list used by the Italian NLP Library.

The OpenNLP models are from https://github.com/aciapetti/opennlp-italian-models

To use these files, put them in the same folder and pass its path as an argument to the ItalianModel class constructor. If no argument is given, it will use the resource folder (usually ./src/main/resources).

Next versions will be likely contain more configuration files in order to allow the developer to manually add rules to change the behavior of the library.