Fix reload global

[MillhioreBT]

Pull Request Prelude

• I have followed [proper The Forgotten Server code styling][code].
• I have read and understood the [contribution guidelines][cont] before making this PR.
• I am aware that this PR may be closed if the above-mentioned criteria are not fulfilled.

Changes Proposed

Because the global reload in luascript.cpp reloads the internal libraries of the revscript environment, the tables where the eventcallbacks are stored are cleaned up, so we must reload the scripts after the global reload.

I also modified the code of the Game.relaod method a bit so that it would return 1 or 2 values ​​as the case may be, since previously a boolean was being pushed to the stack that was not even returned, because only 1 value was being returned.

Issues addressed: #4304

According to the Issue lookAt fails, and yes, it's true, but so did all the related events, so it's a big problem if someone uses reloaded global 😩

[EPuncker]

@xmish can you check this please?

[xmish]

Works fine 👍