Function calculate_outputshape 

pub fn calculate_outputshape(
    input_height: usize,
    input_width: usize,
    kernel_size: (usize, usize),
    stride: (usize, usize),
    padding: (usize, usize),
    dilation: (usize, usize),
) -> (usize, usize)

Calculate output shape for convolution operations