added cn2lm component

README.md

local/cn2lm/COPYING

local/cn2lm/ngramlm/build_cn2lm_arpa.py

local/cn2lm/ngramlm/cn2lm_trig.py

local/cn2lm/ngramlm/data.py

local/cn2lm/ngramlm/poisson_binomial.py

local/cn2lm/rnnlm/data.py

local/cn2lm/rnnlm/kaldi_support/pytorch_grulm_to_kaldi.py

local/cn2lm/rnnlm/kaldi_support/pytorch_rnnlm_to_kaldi.sh

local/cn2lm/rnnlm/kaldi_support/torch_gru.raw.tmp.txt

local/cn2lm/rnnlm/models.py

local/cn2lm/rnnlm/train_cn2lm_rnn.py

local/cn2lm/rnnlm/training.py