add productFromDiagonalMatrix method #7
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Previously, when we perform the element-wise multiplication of AIDiagonalMatrix with another matrix, we never took into account that only diagonal elements have to be multiplied as other elements would anyway be zero.
This PR introduces a new method
productFromDiagonalMatrix
that multiplies only the diagonal elements of the argument(AIDiagonalmatrix) with the receiver(AIMatrix) and returns the argument.