Introduce a ValidationErrorGroup and according stacktrace printing

[david-pl]

While looking into validation in bloqade-circuit, we encountered the need to conveniently display multiple error messages at once. A native python ExceptionGroup is not sufficient, since it doesn't properly display kirin kernel errors.

Therefore, we introduced a ValidationErrorGroup here: https://github.com/QuEraComputing/bloqade-circuit/blob/16429806687591988ea25ee96d2c7c7d35fe9183/src/bloqade/validation/kernel_validation.py#L10.

While the implementation works, and forwards to kirin's exception handler, it still overrides kirin's handler. Therefore, this should be cleaned up and moved to kirin.

[david-pl]

Actually, @Roger-luo @zhenrongliew would it make sense to have something like this as part of the ValidationResult? Specifically, you could raise all errors in the raise_if_invalid method.

[zhenrongliew]

Actually, @Roger-luo @zhenrongliew would it make sense to have something like this as part of the ValidationResult? Specifically, you could raise all errors in the raise_if_invalid method.

Yes that's a good idea. There's currently the format_errors method that pretty prints error messages but doesn't wrap them into an exception. I can write a fix so that raise_if_invalid raises all errors using ExceptionGroup.