GitLab

trunk: Adding lattice-expand-ngram binary and supporting classes and functions. The primary purpose of the binary is transform the lattice so that for any state it has a unique transition history up to order n.

git-svn-id: https://svn.code.sf.net/p/kaldi/code/trunk@4270 5e6a8d80-dfce-4ca6-a32a-6e07a63d50c8