Function rerun::external::re_chunk::util::pad_list_array_front

pub fn pad_list_array_front(
    list_array: &ListArray<i32>,
    target_len: usize
) -> ListArray<i32>

Create a new ListArray of target length by appending null values to its front.

This will share the same child data array buffer, but will create new offset and validity buffers.