Add SelectSlsnet implementation and example

Update resnet example

Update SlsBlock

Add initial SLS block implementation

Update docs

Remove old resnet example

Update resnet example

Add image transformer

Update Renset implementation

Update Resnet impl to follow pytoch

Add model utility script to create and eval models

Update conv utils to add dilation for 3x3

Update model implementation

Add script to create resnet model

Add header to FindSphinx