Updating SDL2 ttf to 2.20

[Lundis]

Hey!

I switched over to static compilation for windows today, and since then I've had some strange font issues (newlines being handled incorrectly for wrapped text), which I believe might have been fixed in the 2.20.x ttf version I used dynamically previously. Could you update the static libs for TTF? From what I can see you currently use 2.18 according to the header files. Latest release: https://github.com/libsdl-org/SDL_ttf/releases/tag/release-2.20.2