replace games/nxengine with NXEngine-evo fork

Port to SDL2 ( thanks to https://github.com/PIlin/NXEngine-iOS )
More resolutions and widescreen support up to FullHD (thanks to https://github.com/EXL/NXEngine )
Fullscreen for any resolution
Gamepad with force-feedback support.
Localization support.
Mimiga mask ending pictures (re-drawn by me)
Modern main menu
Support for "New" and "Remastered" tracks from CS+
Header-dependency hell cleaned up. No more autogenerated headers
Cleaned up nx.h
Lists/maps from haiku replaced with std::vector/map
smalfont -> smallfont
removed built-in data extractor
removed replays, as they were buggy/not implemented anyway
fixed tons of warnings and undefined behaviour

PR: 227084
Submitted by: Piotr Kubaj