Simple implementation of SDL_Events

SDL Development
21

I thought that also required timers to be initialized (or is that not
the case for this specific function?).

SDL_TicksInit() happens before SDL_StartEventLoop()…

 https://hg.libsdl.org/SDL/file/d0865e9f674a/src/SDL.c#l107

…and even if it didn’t, SDL_GetTicks() will explicitly call it if
necessary:

https://hg.libsdl.org/SDL/file/d0865e9f674a/src/timer/unix/SDL_systimer.c#l93

–ryan.