* Fused elementwises kernels and ops

* change fuse pass name

* adjust .pbtxt files

* adjust quantization attributes

* add missing arguments and fix others, review fixed

* simplify fused kernel registration

* fix elementwise unit tests

* reuse one fused elementwise op

* adjust proto

* Add supported datatypes

* Change 'Scale' to 'scale' in tests, change some tests to onednn

* Revert breaking changes

* Fix unit tests

* Delete obsolete test cases

* Delete commented out code

* Fix codestyle

* delete temporary condition

* fix conflicts and delete duplicate fusing

* Fix code after merge

* Move tests to new directory

* fix tests volatility

* Rename test_elementwise_add_onednn_op.py to test_elementwise_add_mkldnn_op.py

* Update CMakeLists.txt add mkldnn op test

---------
Co-authored-by: NSilv3S <slawomir.siwek@intel.com>

* simplify layer_norm_op.cc

* support auto generate for op layer_norm

* update unittest for composite_layer_norm

* remove layer_norm_op.cc from scripts

* replace layer_norm_op with generated_op

* add get_expected_kernel for layer_norm

* update cmake kernel register function for layer_norm_mkldnn_op

* static graph autogen code support for softmax op

* bug fixed

* fix PR-CI-Windows error

* fix CI error

* bug fixed

* fix conflicts

* [test]mv fluid controlflow detection dlnne tensorrt tests to tests

* [test]clean dlnne

* [test] fix test_tensorrt_engine_op

* [test] try fix path error

* [test] RollBACK test_tensorrt_engine_op

* [test] RollBACK test_tensorrt_engine_op

* [test]add todo

* Empty-Commit; test=document_fix

* [test]mv fluid *test* to test/cpp/fluid

* [phi] fix link error

* [test]mv fluid op pscore to test/cpp/fluid/pscore

* [test]add -faligned-new

* [test] fix brpc link

* [test]mv fluid reader to test/

* [test]mv fluid op prim_ops to test/cpp/fluid/prim_ops

* [test]mv fluid op nccl to /test/cpp/fluid/nccl/

* [test]mv fluid op reduce_ops to test/cpp/fluid/reduce_ops

* [test]mv fluid op lite to test/cpp/fluid/lite

* [test]fix lite

* [test]fix prim op path

* [fluid]clean prim ops cmakelists

* [tests]mv fluid benchmark to tests

* [test]Add placeholder

* [test]Add placeholder