* transfer memcpy_h2d from fluid to phi

* use UnchangedInferMeta instead

* restore test_standalone_executor

* add newline to fix codestyle check

* rename pt -> phi

* simplify logic and add check

* make the comment more clear

* remove useless comment

* refine code

resort .cu headers, set clang-format not sort include block and consider .cu as main source file (#43633)

[Phi]Separate AddKernel/DivideKernel/SubtractKernel/MultiplyKernel from ElementwiseKernel（Part1） (#41806)

* seperate add/div/sub/mul from elementwise

* delete code

* fix compile bugs

* deal with conflict

* fix bugs when compile

* fix windows unit test bug

* fix ci converage bugs