Fix some operators

Context

The following operators have not been fully updated during the recent refactoring of exports: [Transpose], [Gather], [Reshape], [BatchNorm2D].

A bug has also been detected regarding the [MatMul] operator in the layer configuration (index 0 instead of 1 for the second input).

The proposed modifications should be considered as a contribution to solve the following issue: !39

Detailed major modifications

• Update and Bug Fix,
• Transformation of "input vectors" of kernel functions into "constant variables (const)" for a safe implementation.

Thank you very much @oantoni for your contribution !

@cmoineau Using the proposed modifications and MR441!, I was able to successfully export this model.

To export the model, uncompress the archive and run from the command line: python onnx_to_aidge.py

PS : The model as is will not fit the available memory of the platform (it is just a toy example)

FYI @axelfarr

The MR looks good to me

Waiting for the MR on aidge_core to pass first.

Than you very much for your contribution @oantoni

MR on aidge_core is closed now.

Please, can you run the pipeline to check if everything is OK with this MR ?

Forgot to check it thank you for the reminder! Merging :)

Thank you very much :)

assigned to @oantoni

requested review from @cmoineau

added Fix 🔥🔥 label

changed milestone to %aidge v0.7.0

merged

mentioned in merge request !33