* fix when out_dtype is same with x.dtype and still transform type error

* fix spell error

* add pten conj kernel

* modify conj_kernel file path

* add defined cuda macro to cuda/conj_kernel.h

* fix_bugs_for_elementwise_branch_selection

* fix merge_dims bugs

* fix all influenced file

* unify device context entrance

* move all_context include to header

* polish cmake relay for device_context

* fix npu compile failed

* fix npu compile failed

* add register_ctx_kernel and move scale kernel

* polish details by reviewer comment

* fix xpu compile failed

* fix cmake error

* Reduce reshape kernel functions in pten

* delete notes

* fix bugs when compile

* modify register name

* fix compile bugs

test=document_fix

* fix reduce_max bug

* add unittest

* fix pten::Copy use error in redcue_impl

* remove in_dtype args in reduce kernel

* fix copy error

* fix copy error