[Feature] Adding support to custom keyboard layout

[oriSomething]

Currently both keyboard simulated events and the KeyboardEvent data they use is locked out to US QWERTY keyboard layout.
I think supporting setting custom keyboard layout or at least supporting more customized KeyboardEvent can be very beneficial to any webapp that supports keyboard management and doesn't want to be locked by broken testing in AZERTY/QWERTZ/Turkish (and even in QWERTY, QWERTY for French Canadian is a bit different, and every layout has its customizations per country) keyboard layouts

[pavelfeldman]

Thank you for reporting this issue and providing comments to those that might be facing a similar problem. I am now closing this as a part of the triage, please feel free to file a new issue with additional details. Given the limited resource and a lot of requests, we need to fulfill most popular requests and at the same time keep our issue database manageable.