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* Add optimized copy to ck wrapper

* Example optimizations

* Fixes

* Move img2col test to client example

* Refactor example

* Fix docs

* Fixes

* Fix

* Fixes

* Fixes

* Fixes

* Fixes

* Fixes

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Co-authored-by: zjing14 <zhangjing14@gmail.com>

* Add tensor partition and generic copy for ck wrapper

* Update changelog

* Stylistic fixes

* Change shape/strides logic to descriptor transforms

* Fixes

* Fix client example

* Fix comments