From: @gengdongjie
Reviewed-by: @liangchenghui,@oacjiewen
Signed-off-by: @oacjiewen

From: @yufan1012
Reviewed-by: 
Signed-off-by:

From: @louisncu
Reviewed-by: @zhang_xue_tong
Signed-off-by:

From: @xulei2020
Reviewed-by: @pandoublefeng,@heleiwang
Signed-off-by: @pandoublefeng

From: @yuchaojie
Reviewed-by: @xsmq,@linqingke
Signed-off-by: @linqingke

From: @chenzupeng
Reviewed-by: @ddwsky,@zhanghaibo5
Signed-off-by: @ddwsky,@zhanghaibo5

From: @dayschan
Reviewed-by: @gaoxiong1,@ckey_dou
Signed-off-by: @ckey_dou

From: @zyli2020
Reviewed-by: @cristoval
Signed-off-by:

From: @zhujingxuan
Reviewed-by: 
Signed-off-by:

From: @cjh9368
Reviewed-by: 
Signed-off-by:

From: @wang_shaocong
Reviewed-by: 
Signed-off-by:

modified file format

modified file format

change the header file in activation_fp16_grad.h

change the year of Copyright info and added LiteKernelCreator.

From: @wangchengyuan
Reviewed-by: 
Signed-off-by:

From: @ling_qiao_min
Reviewed-by: 
Signed-off-by:

From: @zoloft
Reviewed-by: @wangchengyuan,@zhang_xue_tong
Signed-off-by: @wangchengyuan

From: @yanglf1121
Reviewed-by: @liangchenghui
Signed-off-by:

From: @anancds
Reviewed-by: 
Signed-off-by:

Decoupled from the front-end interfaces.
1. Removed the call to "Renormalize".
   Completed the infer-format in model_builder.
   Only used the device shape and device format to
   infer an abstract shape without considering padding.
2. Removed the call to python's Primitive interfaces.
   The "Renormalize" relies on the PrimitivePy, so they can be
   removed together. After that, the functions "ConstAttrToInput",
   "DeleteAttrInInput" and related can be removed.
3. Reuse the AkgKernelJsonGenerator in GraphKernelExpander.
   1) set the attribute "extract_opinfo_from_anf" to true, so that
   the generator can handle the basic operator with anf info.
   2) added a function "extract_expand_info" in expander.py
   to convert the json into a more friendly format. The attrs
   was converted to a dict instead of a list.
4. Scalars only support DefaultFormat.
   Removed the argument "format" from graph_builder.value
5. Moved the expander op list from graph_kernel_helper.cc to graph_kernel_expander.cc

From: @sishuikang
Reviewed-by: @zhanghaibo5,@zhang_xue_tong
Signed-off-by: @zhanghaibo5

From: @qujianwei
Reviewed-by: @c_34,@linqingke
Signed-off-by: @linqingke

From: @tronzhang
Reviewed-by: @ckey_dou
Signed-off-by:

From: @wangshuide2020
Reviewed-by: @liangchenghui,@wuxuejian
Signed-off-by: @liangchenghui

From: @zoloft
Reviewed-by: 
Signed-off-by:

From: @shenwei41
Reviewed-by: @lilongfei15,@wenkai_dist
Signed-off-by: @lilongfei15

From: @xsmq
Reviewed-by: @c_34,@lilongfei15
Signed-off-by: @lilongfei15

From: @gzhcv
Reviewed-by: 
Signed-off-by:

From: @zyhstack
Reviewed-by: @lilongfei15,@xsmq
Signed-off-by: @xsmq

From: @ms_yan
Reviewed-by: @lilongfei15
Signed-off-by:

From: @zhoufeng54
Reviewed-by: @lilongfei15,@xsmq
Signed-off-by: @xsmq

From: @shenwei41
Reviewed-by: 
Signed-off-by:

From: @jinyaohui
Reviewed-by: 
Signed-off-by:

From: @tom__chen
Reviewed-by: @robingrosman
Signed-off-by: @robingrosman

From: @hfarahat
Reviewed-by: 
Signed-off-by:

From: @lixiachen
Reviewed-by: @robingrosman,@nsyca
Signed-off-by: @robingrosman