~ft/npe

sdl2: assortment of fixes and funcs (thanks moody)
sdl2: add SDL_MIX_MAXVOLUME (thanks moody)
errno: add EACCES (thanks moody)
npe: add atime to *stat
npe: add clock_gettime
sdl/audio: set pipe buffer size when running pcmconv; use the correct device name
sdl2: refactor image channel code, more palette function coverage
SDL: readjust/add more scancodes
SDL: scancodes: place command & period properly (thanks uramekus)
sdl2: add SDL_PIXELFORMAT_ABGR8888
sdl2: add SDL_LockTexture and SDL_UnlockTexture
npe: add getopt and getopt_long (based on parg)
pthread: fix const/pointer mess
Next