Add CTC Loss (#4034)

* Add CTC Loss

* Add backward kernel

* Remove tf in test

* Update api document

* Add zero_infinity option

* refine

* Add 1n2d test case

* Switch to consistent_view

* Fix Eager mode

* Remove duplicate license

* Add grad check

* Fix bw test

* Fix bugs

* Add op name

* Refine

* of_format

* Expand annotation

* Performance optimizing for cuda

* Check input_length & target_lengths

* Update __syncthreads

Co-authored-by: oneflow-ci-bot <69100618+oneflow-ci-bot@users.noreply.github.com>