Parse more missing Key / Code values

[CryZe]

This completes the Code parsing and also adds F13 - F24 to the Key parsing code.

[maan2003]

I approve the changes in web, x11 and gtk backends. But someone else will have to review the mac and windows changes

[CryZe]

I sourced these values from:

MDN, but it turns out to be wrong in many ways (I actually have one merged and one open PR to fix it):
https://developer.mozilla.org/en-US/docs/Web/API/KeyboardEvent/code/code_values

Chromium's sources:
https://github.com/chromium/chromium/blob/fd8a8914ca0183f0add65ae55f04e287543c7d4a/ui/events/keycodes/dom/dom_code_data.inc

Firefox's sources:
https://github.com/mozilla/gecko-dev/blob/25002b534963ad95ff0c1a3dd0f906ba023ddc8e/widget/NativeKeyToDOMCodeName.h

Safari's sources:
Windows:
https://github.com/WebKit/WebKit/blob/8afe31a018b11741abdf9b4d5bb973d7c1d9ff05/Source/WebCore/platform/win/WindowsKeyNames.cpp
macOS:
https://github.com/WebKit/WebKit/blob/main/Source/WebCore/platform/mac/PlatformEventFactoryMac.mm
Linux GTK:
https://github.com/WebKit/WebKit/blob/8afe31a018b11741abdf9b4d5bb973d7c1d9ff05/Source/WebCore/platform/gtk/PlatformKeyboardEventGtk.cpp
WPE:
https://github.com/WebKit/WebKit/blob/8afe31a018b11741abdf9b4d5bb973d7c1d9ff05/Source/WebCore/platform/libwpe/PlatformKeyboardEventLibWPE.cpp

(also Linux's source code which contains the evdev constants, which are the linux scancodes - 8 and the USB HID spec)

Chrome has by far the most accurate implementation with Firefox missing a few things and being wrong in a few places and Safari copying bugs from either Firefox or (old) Chrome sources.

[cmyr]

Great thanks! I'm not going to try and test all of these, but it looks sane and I'm happy to merge. I'm sure any issues will shake out eventually. :)