* standard_api

* add hardtanh

* copy kernel file to phi

* delete some code

* migrate uniform_random, test=kunlun

* fix input error, test=kunlun

* fix gpu register error, test=kunlun

* add include file, test=kunlun

* try fix error from CI, test=kunlun

* polish other PR

* fix CI-coverage error, test=kunlun

* [OpAttr]min/max of Uniform_rand support Tensor type

* fix typo

* rename scalar_array to int_array

* update cmake

* fix conflict

* remove useless log

* move selected_rows kernel head to selected_rows dir

* update license

* add sr namespace

* refacter selected_rows kernel funciton name

* fix bug

* move uniform_random to phi

* fit selected_rows

* replace mutable_data