[FR] Expose LastOnigError()

[RedCMD]

Please expose a function that returns the last LastOnigError

I am currently able to get the error code by calling a private function inside a scanner

// @ts-ignore
const errorCode = scanner._onigBinding.UTF8ToString(scanner._onigBinding._getLastOnigError());

maybe something like:

export function lastOnigError(): string {
	if (!onigBinding) {
		throw new Error(`Must invoke loadWASM first.`);
	}
	return onigBinding.UTF8ToString(onigBinding._getLastOnigError());
}

and would it be possible to extract the location of the error as well?
index of which regex caused it
and position of the error within the regex