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

From: @Margaret_wangrui
Reviewed-by: @zh_qh,@hwhewei,@zh_qh,@hwhewei
Signed-off-by: @zh_qh,@zh_qh

2、Support trace tuple side-effect from a Switch

From: @zpac
Reviewed-by: @cristoval,@limingqi107
Signed-off-by: @limingqi107

From: @gong_zi_yan
Reviewed-by: @stsuteng
Signed-off-by: @stsuteng

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

From: @zh_qh
Reviewed-by: @ginfung,@hwhewei
Signed-off-by: @hwhewei

From: @liu_luobin
Reviewed-by: @baochong,@chongbao
Signed-off-by:

From: @Margaret_wangrui
Reviewed-by: @ginfung,@zh_qh
Signed-off-by: @zh_qh

From: @limingqi107
Reviewed-by: @wilfchen,@cristoval
Signed-off-by: @cristoval

From: @jjfeing
Reviewed-by: @zhoufeng54,@kisnwang
Signed-off-by: @kisnwang

From: @yao_yf
Reviewed-by: @yangzhenzhang,@stsuteng
Signed-off-by: @stsuteng

From: @Margaret_wangrui
Reviewed-by: @zhoufeng54,@jjfeing
Signed-off-by: @jjfeing

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

From: @islam_amin
Reviewed-by: @john_tzanakakis,@yelihua
Signed-off-by: @yelihua

From: @gaoyong10
Reviewed-by: 
Signed-off-by:

From: @lianliguang
Reviewed-by: @jjfeing,@chujinjin
Signed-off-by: @chujinjin

From: @zhangzhaoju
Reviewed-by: @zh_qh,@ginfung
Signed-off-by: @zh_qh

From: @lianliguang
Reviewed-by: @zh_qh,@ginfung
Signed-off-by: @zh_qh

From: @lianliguang
Reviewed-by: @ginfung,@zh_qh,@ginfung
Signed-off-by: @zh_qh

From: @limingqi107
Reviewed-by: @cristoval,@wilfchen
Signed-off-by: @wilfchen

1. set class GraphKernel as deprecated, and treat it as Cell
2. set class InplaceAssign as deprecated, suggested using Assign instead.
3. set op_selector as deprecated, removed the _selected_ops and _selected_grad_ops, replaced with real operations
4. removed the two passes of GraphKernel from frontend
5. removed the GraphKernel's codes from other modules

From: @chenfei52
Reviewed-by: 
Signed-off-by:

From: @chenfei52
Reviewed-by: @ginfung,@zh_qh
Signed-off-by: @zh_qh