* add clamp without unittest
* add clamp-act with unit test
* fix name bug
* use logical and
* fix logical_and
* fix linting
* rename ClampLayer to Clamp
* rename ClampLayer to Clamp
Co-authored-by: nbei <631557085@qq.com>
* add building bricks of cnn
* add unit tests
* use registry for building bricks
* minor updates
* add scale layer
* add test for scale
* add doc string
Co-authored-by: Jiarui XU <xvjiarui0826@gmail.com>