* remove fluid.data

* fix typro

* fix somme unitest error

* fix conflicts

* fix sample code error

* fxi sample coder error

* fxi sample code error

* fxi sample code error

* fix xpu test error

* fix xpu test error

* Delete ps_pb2.py

* fix test error

* fix typro

* fix sample code error

* fix comments

* fix test norm op data

* fix sample code error

* fix conflicts

* remove paddle.fluid.layers.nn.temporal_shift

* code check

* rm unittest

* remove fluid.yolo_box

* remove fluid.yolov3_loss

* change the comments of yolov3_loss to yolo_loss

* add isort config

* isort all files

* update config

* re-blacken python code

* temporarily disable date and diff_py_file

* skip a format

* [CodeStyle] remove all future import

* revert test_error.py

* restore future import in example code

* use yapf to format all python file

* yapf exclude two unittests file for they rely on writing and reading file, and format will break them

* disable diff_py_file because too many diff files cause command following failed

* enhance yolobox plugin

* yolobox converter and plugin

* yolobox unittest

* add dynamic shape restriction

* fix git merge log

* trt gather converter

* add trt gather unit_test

* add n-d input support for trt scale converter

* add flatten for ut

* fix dims

* optimize errror report

* add test case for pad op converter

* fix some spelling mistake commented by peiyang

* refine infer ir pass tests, test=develop

* commit to change copy_from_cpu input to np array, test=develop

* Add three passes and api reference of paddle_pass_builder.h

* add InterencePassTest for testing precision of inference passes, test=develop