Convert by name

Procedural macros to derive std::convert::From and std::convert::Into implementations based on field/variant names. The crate supports structs and enums only. unions are not supported.

Examples

Deriving From

```rust

[derive(PartialEq, Debug)]

struct Point2D { x: i32, y: i32, }

[derive(PartialEq, Debug, ConvertByName)]

[from(Point2D)]

[into(Point2D)]

struct Vec2D { x: i32, y: i32, }

let point = Point2D { x: 3, y: 4 };

let vector: Vec2D = point.into(); assert_eq!(vector, Vec2D { x: 3, y: 4 });

let point2: Point2D = vector.into(); assert_eq!(point2, Point2D { x: 3, y: 4 }); ```