[Fix] Producer clone and Tensor copy

Context

Closes #207 (closed)

Major modifications

• Tensor

  • add compound assignment operator (+=, -=, *=, /=) with Tensor and arithmetic values
  • add operator(+, -, *, /) with arithmetic values
  • add friend symetric operator (+, -, *) with arithmetic values
  • add fmt parsing function (now you can display a Tensor with fmt)
  • Add move assignment operator
  • Fix 'Tensor::clone()' if original Tensor has no implementation
  • Change Tensor::operator= behaviour to always perform a shallow copy in case of copy constructor/assignment operator calls

• Pop_Op: fix kernel that should not be inplace

• Data: add copy/move constructor/assignment operator

changed milestone to %aidge_core - v0.4.0

added Fix 🔥🔥 TopicTensor labels

requested review from @cmoineau

assigned to @pineapple

changed target branch from main to dev

Do we really need to keep this commented cannot we remove it?

Yes I think it should be kept for now because it shows how to perform a copy between different backends

I confirm that it fixes the issue. But I am not sure deep dwon about what was the issue, I will investigate a bit more.

Furthermore, the fix creates 2 fails in aidge_learning:

5 - [learning/Adam] update (Failed) 6 - [learning/SGD] update (Failed)

I will investigate on this.

mentioned in merge request aidge_backend_opencv!22 (merged)

requested review from @olivierbichler

OpenCV module fixed in aidge_backend_opencv!22 (merged)

added 2 commits

• 3f12c96d - enhance: add debug details for tensor comparison
• 4cd0fd80 - Upd: Tensor operators and fmt display

Compare with previous version

added StatusReview Ready label

mentioned in merge request aidge_learning!24 (merged)

Learning module fixed in aidge_learning!24 (merged)

changed the description

approved this merge request

added 10 commits

• 4cd0fd80...9fd586b0 - 2 commits from branch dev
• 7e4e784d - Add copy/move constructor/assignment operator for Data class
• 77d70664 - Improve copy/move/clone behaviour consistency
• 2e5ace67 - Add python binding for 'Operator::clone' enabling deep copy of operators in Python
• 39fe5ef8 - Fix 'Producer_Op::clone' to create a new producer and not use shallow copy
• b3a41e3d - Fix 'Pop_Op::forward' that should not be inplace
• 49abcf60 - Small improvements of some tests
• 84bef9d2 - enhance: add debug details for tensor comparison
• 5cc265ab - Upd: Tensor operators and fmt display

Compare with previous version

enabled an automatic merge when all merge checks for 5cc265ab pass

mentioned in commit 9295445c