From: @wanyiming
Reviewed-by: @kingxian
Signed-off-by: @kingxian

updating notes of pynative in nn_layer

From: @wanyiming
Reviewed-by: 
Signed-off-by:

Merge pull request !7298 from yihuaijie/master

Merge pull request !6976 from chenzhongming/zomi_master

Merge pull request !5735 from caozhou/delete_seed

style fix

lint fixes

added check in NN layer for > 4 paddings, plus lint fix

fix python lint

lint fix

lint fix

updating to pytest asserts to improve testing

removed unnecc vars from test file fail checks

Merge pull request !2478 from BowenK/python_pass_clean

- It provides a unified style to express graph and kernel for user.
- It provides a unified IR to represent graph and kernel for developer.
- It breaks the boundary between graph and kernel.
- It provides more opportunities to do compile optimization.