reconfig: connections among op and tensor now is managered by GraphObj .
add some comments
merge from master
merge from master
ADD: sub graph replacement
reconfig inputs of op resize, due to the check of operator inputs.
ResizeObj::clone
clang format
fix some and add test for multi-output.
replacement support multi-inputs and multi-outputs.
add clone for all operators
add replaceSubGraph addSubGraph
remove extra code
add more test
remove extra print
Co-authored-by: Haojie Wang <haojie0429@gmail.com>
wendy12022