// Bind data from request.Form[key] to dest
// like
/?id=123&isok=true&ft=1.2&ol[0]=1&ol[1]=2&ul[]=str&ul[]=array&user.Name=
astaxie
// var id int beegoInput.Bind(&id, "id") id ==123
// var isok bool beegoInput.Bind(&isok, "isok") id ==true
// var ft float64 beegoInput.Bind(&ft, "ft") ft ==1.2
// ol := make([]int, 0, 2) beegoInput.Bind(&ol, "ol") ol ==[1 2]
// ul := make([]string, 0, 2) beegoInput.Bind(&ul, "ul") ul ==[str
array]
// user struct{Name} beegoInput.Bind(&user, "user") user ==
{Name:"astaxie"}
