Boolean tensors

Context

This merge request adds support for the Boolean type to the aidge_backend_cpu module.
It follows the ONNX convention by setting the outputs of the Equal and And operators to bool.

Modified files

• EqualImpl_kernes.hpp added Boolean data type as input/output to registrar;
• Test_EqualImpl.cpp, added unit tests for Boolean Tensors;
• AndImpl_kernes.hpp added Boolean data type as input/output to registrar;
• Test_AndImpl.cpp, added unit tests for Boolean Tensors;