Users cannot specifiy the store directory of optimized model by `--optimize_out` option. This option can only set optimized model's name.

* [arm]add 2x2s2p1 pooling  (#3705)

* fix pooling bug and speed

* add 2x2s2p1 pooling. test=develop

* fix conflict, test=develop

* fix conflict in wino

* [arm] add 3x3s1 Winograd int8 (#3767)

* fix: winograd support unsame pad
test=develop

* feat: add winograd int8 kernel
test=develop

* fix: style fix
test=develo

* fix winograd_int8 ut sgement default. test=develop

* close basic_test, test=develop
Co-authored-by: NMyPandaShaoxiang <txg4794@163.com>

* fix xiaodu crash in gemm prepacked

* in huwen phone, 3x3s2p0 avg pooling will rand crash, other phone does not have this feature

* [arm] update con int8 kernel choose (#3834)

* fix conv int8 kernel choose and sooftmax compute bug

* change axis_size = 4 kernel choose, test=develop

* fix format. test=develop

* fix format.test=develop

* fix build test=develop

* fix buiild error test=develop

* fix wino_int8 computte erroor. test=develop

* Update the link to debug, test=develop, test=document_fix (#3870) (#3871)
Co-authored-by: NMyPandaShaoxiang <txg4794@163.com>
Co-authored-by: Ncc <52520497+juncaipeng@users.noreply.github.com>

* Update benchmark doc for v2.6, test=develop, test=document_fix (#3660)
* [Doc] Update shell for make benchmark_bin (#3661)

* test=develop, test=document_fix, the document of python demo

* test=develop, test=document_fix, the document of python compiled
Co-authored-by: Nhuzhiqiang <912790387@qq.com>

* Use paddleslim docs in quantization, test=develop, test=document_fix (#3565)

* fix: update fpga doc
test=document_fix

* fix: update fpga doc & delete useless index.rst

* fix: update fpga md and index
     delete useless index.rst
     test=document_fix
     test=develop

* add cv to index, test=develop, test=document_fix

* add layout, opencl docs. test=document_fix

* fix link in doc. test=develop, test=document_fix

* update cuda doc. test=document_fix

* update for clang. test=document_fix

* add docs