6.7.5 : Peformances tests

• 6.7.5.1) A naive implementation of the hadamard product
• 6.7.5.2) Hadamard product with numpy functions
• 6.7.5.3) Hadamard product with our intrinsics pitch implementation
• 6.7.5.4) What hapened if I use python list instead of numpy array for naive implementation ?

In this section, we will write several performances tests in python.