Add GATE Twitter POS Tagger models

https://gate.ac.uk/wiki/twitter-postagger.html
Add libfiles.cpu property in commonbuild script
Add POS Tagger based on Stanford CoreNLP

http://nlp.stanford.edu/software/tagger.shtml
Update Javadoc in POSTagger
Add SplitTweetBolt tokenizer
Update POSTopology and include models in jar
Update POSTaggerBolt