* [prim][newir] add basic framework for primitive

* support desctensor in new ir

* add vjp interface

* support vjp in new ir

* support vjp in new ir

* polish vjp interface

* fix stop_gradients set

* fix vjp dispatch

* add comment

* add vjp test for new ir

* add test for tanh vjp

* [prim][newir] add basic framework for primitive

* support desctensor in new ir

* support vjp in new ir

* support vjp in new ir

* polish vjp interface

* fix stop_gradients set

* fix vjp dispatch

* add comment

* add vjp test for new ir

* add test for tanh vjp

* add eager and static backend for warp lower level api

* support call_vjp pybind

* polish code and add test for vjp

* remove useless code

* polish code

* remove useless code

* support mean vjp

* add test for mean vjp and support has_vjp function

* fix call_vjp

* polish code

* add primitive ops set for backend

* add vjp test for tanh_

* fix inference CI

* fix inference ci

* modify fluid cmake

* remove useless deps

* add cmake

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Co-authored-by: Ncxxly <chenxx_id@163.com>
Co-authored-by: Nzhangbo9674 <zhangbo54@baidu.com>

* fix jit layer function

* fix comment

* fix comment

* Polish function code

* Rename funciton to engine

* Fix Log msg and doc

* Rename Function to Engine and using new Function class to warp Engine

* Rename EngineInfo

* Adjust member variable order

* Move Function classes to a sub dir

* Format code

* Remove include fluid head files in JitLayer

* Format code

* Remove const to fix ci error

* Fix param error

* Polish jit layer include and cp some headers to python/include

* Fix comment

* [JIT]Layer support eager dygraph mode and polish Function interface

* remove usless code

* fix #define

* Split layer_utils.cc and polish interface BaseFunction

* Polish include

* Fix cmake for funciton_schema

* Using unordered_map replace map and rename VariableNameMap

* Polish Layer Constructor and remove useless include

* Refine compilation_unit

* Fix some TODO and polish code

* Support GPU place

* Fix layer_test ci error

* Polish some code

* Make GetFunction as const function

* Remove COMMAND tar to fix CI error

* Fix comments

* Merge develop to fix codestyle error

* Load models and run PE

* Stash all code

* Fix C++ UT and refine code

* Fix string length error

* skip windows ci because windows do not have wget

* Just print out in layer_test because bce param file changed

* Refine code

* Fix pdiparam download error for layer_test

* Polish FunctionSchema and rename some arg

* New Exector only once

* Add value type for ivalue

* Read params from one pdiparam file

* Replace ivalue using Variable

* Remove ivalue file

* Fix inner_exe new

* Using DeserializeFromStream to load tensor

* Split .cc files

* Polish cmakelist