Implement missing <search.h>, <stdio.h>, <stdlib.h>, <wchar.h> functions and definitions
completed by: :Puckipedia
mentors: mmu_man, Kacper Kasper, Adrien Destugues - PulkoMandy
completed by: :Puckipedia
mentors: mmu_man, Kacper Kasper, Adrien Destugues - PulkoMandy