* rename the nchw and pass the unit test; going to do it for nhwc depthwise

* bug with fusion

* nchw works fine; nhwc float32 problem remains

* still cannot bind them together

* fusion works

* syntax fix

* all bugs fixed; test cases pass

* minor fix on nn.h

* back wrt input

* backward wrt input nhwc; only test case in recipe

* test case for depthwise back wrt input

* test case for depthwise backward wrt weight

* tags

* minor fixes

* pylint test; add arch=3.7

* modify scheduler

* better backward depthwise w.r.t weight scheduler

* updated scheduler

* test_topi_depthwise_conv2d_back_input.py and test_topi_depthwise_conv2d_back_weight.py success

* all test cases wrt input pass

* update

* new test cases and scheduler

* not working 1 and 2

* good wrt weight, bad wrt input

* test cases added

* remove tf lines

* minor fix

* compute arch changed

* remove compile hook

* minor change

* pylint

* fix the float for python case

* fix cases for python3 case

* except for memoize

* fix most; memoize still wrong

* memoize added

* unexpected layout cases added for scheduler

* error message layout other than NHWC added

* improve padding

* fix as pr requests

* remove dilate in backward wrt weight