Partial fix for issue eclipse/aidge/aidge_core#167

Partial fix for issue eclipse/aidge/aidge_core#167:

• Allow BatchNorm to handle any number of dimensions (in accordance with ONNX).

changed title from Fix issue eclipse/aidge/aidge_core#167 to Partial fix for issue eclipse/aidge/aidge_core#167

changed the description

enabled an automatic merge when all merge checks for f230cc4b pass

aborted the automatic merge because target branch was updated

added 3 commits

• f230cc4b...9e272f0c - 2 commits from branch dev
• d8ae9830 - Allow BatchNorm implementation to handle any number of dimenions

Compare with previous version

enabled an automatic merge when all merge checks for d8ae9830 pass

merged

mentioned in commit cff1ec49