Derive partial eq extras

More customisable #[derive(PartialEq)]

Adds ability to ignore/skip fields

#[partial_eq_ignore]

use derive_partial_eq_extras::PartialEqExtras;

#[derive(PartialEqExtras)]
struct A {
    x: u32,
    #[partial_eq_ignore]
    y: String,
}

Here the y field is ignored when comparing As. e.g A { x: 4, y: "Hello".into() } == A { x: 4, y: "World".into() } is true

#[partial_eq_ignore_types]

use derive_partial_eq_extras::PartialEqExtras;

#[derive(PartialEqExtras)]
#[partial_eq_ignore_types(u32)]
struct Numbers {
    name: String,
    x: u32,
    y: u32,
    z: u32,
}

Here the x, y and z fields are ignored because they have type u32 which is marked on a top level attribute as something to ignore. This becomes a shorthand for defining #[partial_eq_ignore] on all fields with u32 types