“cfffb1a36251e7d06535dac6db220131e36fe9f8”上不存在“paddle/phi/kernels/slice_kernel.h”
* Expose paddle.framework by pybind11
* Export paddle.framework.{Scope, Variable} to paddle.v2.framework.core.
* See python/paddle/v2/framework/tests/test_scope.py for Python usage
* See paddle/pybind/pybind.cc for C++ bind code.
* add copyright