Split existing JAR

[ab-10]

Currently there's one large jar file generated by the Maven build, running which runs a local API instance.
Instead there should be 3 jar files generated as a result of build into out folder:

• indexation.jar that creates Lucene indexes from out/externalData into out/indexes

• analysis.jar that accepts triples of form pivot,comparison,feature separated by \n and outputs the same list of triples with appended 0 (not discriminative) or 1 (discriminative). E.g java -jar analysis.jar --model_name < apple,orange,red is expected to output to standard out apple,orange,red,1

• api.jar current functionality of the jar, i.e. runs a local instance of API.