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

1. add DiverseBranchBlock module;
2. ResNet support dbb version using DiverseBranchBlock by setting micro_block="DiverseBranchBlock";
3. ResNet support official vb version by setting use_first_short_conv=False;
4. add ResNet18_dbb training config ResNet18_dbb.yaml.

* add weighted soft labels loss function

add weighted soft labels loss function

* fix typo in docs/zh_CN/advanced_tutorials/knowledge_distillation.md