Matrix: 'mean' method speed up (#160)

Matrix: Hadamard product speed up (#157)

Matrix: 'pow', 'sum', 'log', 'exp', 'prod' methods speed up (#156)

Matrix: 'norm' method (Frobenius case) speed up (#155)

Matrix: 'mapElements' speed up

Matrix: 'transpose' method fixed for oversized flattened list (#152)

Matrix: flattened SIMD list length fixed (#151)

Matrix: SIMD used in matrix-matrix operations (#148)

Matrix: SIMD used in matrix-scalar operations (#147)

Vector: typed list getters changed to functions (#146)