What problem does this solve or what need does it fill?

When mocking gamepad input, you must send GamepadEventsRaw, or it will not be transformed into Input and Axis data correctly.

However, there are not docs to explain the difference or warn users of this footgun.

What solution would you like?

1. Add documentation to GamepadEvents and GamepadEventsRaw explaining their purpose.
2. Add a doc test demonstrating how to use GamepadEventsRaw to mock gamepad input.