add cooldown config

update optimizer

fix ParamAttr & update  test_tipc

fix tipc

update tipc config

remove docs of `_make_divisible`

refactor the implementation of "no weight decay"

fix model name

remove cooldown config

This reverts commit 75a20ba5.

This reverts commit e4a3e1bb.

This reverts commit 97935164.

This reverts commit d3941dc1.

This reverts commit 40085883.

This reverts commit 392b75b1.

This reverts commit ac27cb19.

https://github.com/PaddlePaddle/PaddleClas/pull/2633