* Refine fusion lstm op code for better readability

* Enable peephole in fusion lstm op (seq_mode part) and add unit test

* Enable peephole in fused lstop op (batch_mode part)

Set batch_mode as default as well

* Use pre-commit to clean format

* Follow up review comments as well as adding more unit tests for seq mode

* framework cmake

* Update CMakeLists.txt

* remove template operator

* "fix compile"

* "fix ci"

* "fix ci"

* fix dist train reduce mode

* fix previous fix