A new Adaptive Weighted Deep Forest and Its Modifications Implementations

There are two different implementations of Deep Forest modifications:

1. Adaptive Weighted Deep Forest (in directory AWDF), which is based on official gcForest implementation;
2. AWDF for the transfer learning (in directory Transfer learning AWDF), which is based on lightweight gcForest implementation. Fit-predict interface is adapted to be able to handle the transfer learning task.

Please, follow the README.md files in AWDF and Transfer learning AWDF directories for thorough explanation of usage.