new: Apache License
new: README
new: Maven pom file for library
new: TransferFunction interface
new: LinearTransferFunction class + test
new: SigmoidTransferFunction class + test
new: Input class + test
new: StepTransferFunction class + test
new: Neuron class + test
new: FeedForwardLayer class + test
new: Network abstract class
new: FeedForwardNetwork class
new: LearningSet class
new: Teacher abstract class
new: FeedForwardTeacher class