[add] KerasParser, SsplitKerasAnnotator, BunsetsuKerasAnnotator and L…

[kyoshinaga]

…ookupTable.

• Adding following classes
  • jigg.ml.keras
  • KerasParser: Main class for constucting network from keras model file.
  • KerasModel: For reading model file.
  • jigg.util
  • LookupTable: For reading lookup-table file.
  • jigg.pipeline
  • SsplitKerasAnnotator: For sentence splitting.
  • BunsetsuKerasAnnotator: For bunsetsu chunking.

[kyoshinaga]

Thanks a lot for your comment. There is no reason for uses of List. Ok, I'm going to replace and refactor these.