* Int8 implementation for convolution operator on Intel Skylake

* Int8 implementation for convolution operator on Intel Skylake

* PR changes

* PR changes

* PR changes

* Fixing an error

* Fixing an error

* Minor typos fix

* Minor typos fix

* Removing the broadcast16 CPP code. Using astype feature instead

* Replacing constant by variable name num_elements_intel

* Name fixes and tensorize update rule updated

* Fixing the bug about checking skylake

* Replacing bitcast with reinterpret

* Isolating INT8 and FP32 schedules to ease out future AutoTVM PR merge

* Putting check_skylake function in the x86 directory

* Added documentation and organizing files to better locations

* Tensor intrin renaming. Avoid code duplication for intrin by kernel reshaping

* Bugfix operator fusion for residual block with layout transform

* add a test case

* update error message

[TOPI] Fix reduce behavior to be consistent with numpy

* [COMPILER][BUG] Fix out of bound access.

* 	* Review comments.

* Add mean and product operators

* Fix typo

* Fix lint

* fix test

* Fix gpu schedule

* Update doc

* remove mean from topi

* Add nnvm test

* Fix cuda schedule

* Remove cuda schedule