Function paginate

vmm/src/app.rs:1198–1211

(items: Vec<T>, page: u32, page_size: u32)

}

fn paginate<T>(items: Vec<T>, page: u32, page_size: u32) -> impl Iterator<Item = T> {
    let skip;
    let take;
    if page == 0 || page_size == 0 {
        skip = 0;
        take = items.len();
    } else {
        let page = page - 1;
        let start = page * page_size;
        skip = start as usize;
        take = page_size as usize;
    }
    items.into_iter().skip(skip).take(take)
}

#[derive(Clone)]
pub struct VmState {