Vector-Tuple algebraic operation implementations

[Alex-Velez]

Vector(2/3/4) have implementations for From<(f32, ..., f32)> but no algebraic operations for simple vector math.

Example:

let vector = Vector2::new(1.0, 2.0);

let easy = vector * (3.0, 4.0);

let annoying = Vector2 {
    x: vector.x * 3.0,
    y: vector.y * 4.0,
};

assert_eq(easy, annoying);

[IoIxD]

Active development now happens in raylib-rs/raylib-rs, feel free to open this there.