* add yaml

* fix infrt compile bugs

* fix instance norm index error

* add unittest

* update

* fix

* fix bn & in in dy, test=develop

* update instance_norm,test=develop

* fix bugs,test=develop

* add more case in unittest,test=develop

* fix,test=develop

* fix,test=develop

* error enhance,test=develop

* update,test=develop

* update type, test=develop

* replace inout_check, test=develop

* copy stop_gradient property in clone, test=develop

* fix pruning issue, test=develop

* fix kLookupTablePath issue, test=develop

* sync program, test=develop

* copy subblocks, test=develop

* add unittests, test=develop

* fix instance norm

* update unitest,test=develop

* fix bn

* add instance norm op