Enhance activations testing #992
Description
Motivation
A module with activation function was added in #860
It was proposed to include the means to check the functions against known libraries such as PyTorch or TensorFlow. A way to do that would be to add a Python script that evalues the available activations and their derivatives and stores them as a list of .npy files. These files should then be read in the tests to compare the results
Prior Art
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Additional Information
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