Add lookup table for Hedgewars key IDs instead of generating IDs on the fly
This makes sure the key IDs never change. Previous implementation abused SDL_GetScancodeName to generate the IDs programmatically, which was not reliable and explicitly adviced against in the SDL documentation <https://wiki.libsdl.org/SDL_GetScancodeName#Remarks>.
; This file can be edited to change the style of the application
; See Styling Qt Quick Controls 2 in the documentation for details:
; http://doc.qt.io/qt-5/qtquickcontrols2-styles.html
[Controls]
Style=Default
[Universal]
Theme=Light
;Accent=Steel
[Material]
Theme=Light
;Accent=BlueGrey
;Primary=BlueGray