* add pad_dilation function

* add dilation to gpu_emitter

* add CoordinateDiff constructor to GPUShape

* remove unecessary cast

* working version for forward

* forward working

* forward test all pass

* deconvolution forward

* backward data dilation

* forward test passed

* initial to 0

* fix bug for get_padded_shape and clang format

* code style, change variable names

* refactor convolution conditions

* fix bug padding_below_diff

* change pad_dilation to pad_dynamic, compare to pad

* remove passed convolution test from skip list, clang format

* change pad to use GPUShape