Custom offsets support?

I needs custom offsets support. I'm using offsetof from native addon (for support correct packing and align).

const struct = new StructBuffer("Player", {
  hp: float({offset=0}),
  mp: float({offset=4}),,
  name: string_t({offset=8})[3],
});

[januwA]

StructBuffer does not support automatic alignment, but you can use padding_t type, I don't know if it can solve the problem.

    const s = new StructBuffer({
      hp: uint16_t,
      padding1: padding_t[2],
      mp: uint32_t,
    });

    const view = s.encode({
      hp: 1,
      mp: 2,
    });

    expect(sview(view)).toBe("00 01 00 00 00 00 00 02");

    const obj = s.decode(view);
    expect([obj.hp, obj.mp]).toEqual([1, 2]);