sdl - added comment with URL to windows scancode definition document

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extra : histedit_source : f915f6603661ea4190976914f4e6cdbe9bb66c01
Remove / update references to 1.2.

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extra : histedit_source : 374adabd4332afcb1a85517ef8b82fe997f830c1
Whoops, this controller had already been added.
Merged