Don't warn about #[serde(with = "...")]

[lynn]

I had some code like this:

use chrono::serde::ts_seconds;
use chrono::DateTime;
use serde::{Deserialize, Serialize};
use ts_rs::TS;

#[derive(Serialize, Deserialize, TS)]
#[ts(export)]
pub struct Test {
    #[ts(type = "number")]
    #[serde(with = "ts_seconds")]
    some_time: DateTime<Utc>,
}

ts-rs already handles this perfectly, as long as number really is the type that ts_seconds transforms the field to/from. However, it issues a warning about unrecognized attribute #[serde(with)]. So I wrote this patch that parses this attribute and silences the warning.

[escritorio-gustavo]

This has been implemented in #185 through the no-serde-warnings feature flag, which will disable all serde related warnings

[NyxCode]

I think we still might want to eagerly parse the with attribute, and only emit a warning when the field does not have a #[ts(type = "..")] override.

[escritorio-gustavo]

and only emit a warning when the field does not have a #[ts(type = "..")] override.

Is it always the case that with requires type? If so, we could emit a compile_error! to make this mistake impossible to make

[escritorio-gustavo]

Implemented in #280