* fix the issue that: loading model consumes too much time test=decelop

test=develop

* alter the api name from cpu to x86, test=develop

* correct the step_rnn model test, test=develop

* [mobile][opencl] suite model male2fe ,support a type element_mul ,test=mobile

* [mobile][opencl] add test4 male2fe ,test=mobile

test=develop

temporarily remove cuda fc fuse because we don't support cuda fc now

* Enhance fc_fuse_pass to enable fusing relu to fc_op
test=develop

* restrict fusing relu in x86
test=develop

X86 and cuda compile simutaneously cmake ..  -DCMAKE_BUILD_TYPE=RelWithDebInfo  -DWITH_MKL=ON           -DLITE_WITH_CUDA=ON           -DWITH_MKLDNN=OFF           -DLITE_WITH_X86=ON           -DLITE_WITH_PROFILE=OFF          -DWITH_LITE=OFF           -DLITE_WITH_LIGHT_WEIGHT_FRAMEWORK=OFF           -DWITH_PYTHON=OFF           -DWITH_TESTING=ON           -DLITE_WITH_ARM=OFF           -DLITE_ON_TINY_PUBLISH=OFF           -DCUDNN_ROOT=/usr/local/cudnn/           -DLITE_BUILD_EXTRA=ON (#2708)

x86 and cuda compile simutaneously

test=develop

* Fix the compiling error which occurs when specify the ddk_root path and build for huawei NPU.

* Refine the registration of op bridges and make it similar to the registration of op and kernel.

* Refine the interfaces of the graph and node for op bridges, and support creating constant and data node automatically according to the attribute 'persistable' of the target tensor.

* Add the unit test of the scale and softmax op bridge for NPU.

* fix yolov3 bug when run several times, test=develop

Optimize the execution of RuntimeProgram by saving the bool whether the op is feed/fetch op. (#2703)

test=develop

[mobile][opencl] make model attr support issue more readable ,fastfail before cxxlib err ,test=mobile (#2697)

* [mobile][opencl]optimise log print , ues kNOLOG to close develop time logs ,test=mobile

* [mobile][opencl]optimise log print , ues kNOLOG to close develop time logs ,test=mobile

remove test_models ci projects, because these project hass been removed in ci test test=develop (#2669)

* [mobile][opencl]common deepwise conv,test=mobile

* [mobile][opencl]revert deepwise 3x3 for stable ,test = mobile

* [mobile][opencl]format convkernel.inc.cl with clang-format ,test = mobile

* [mobile][opencl] suite 1*X Y element_y ,test=mobile

* [mobile][opencl] add whole print method for cl_image ,test=mobile

-fix fluid-lite-subgraph x86 compile error
    - Replace FLAGS with environment variables

[Mobile][ARM]Fix memory leaks when using input tensor created with external pointer in lod_mode. (#2681)

* feat: add multi_thread ut

test=develop

add clear for tensor

* fix op inputs and outputs type, test=develop

optimize softmax cuda kernel