add weakify.h
add weakify.h

tekezo/Karabiner,tekezo/Karabiner,e-gaulue/Karabiner,tekezo/Karabiner,e-gaulue/Karabiner,wataash/Karabiner,e-gaulue/Karabiner,tekezo/Karabiner,wataash/Karabiner,wataash/Karabiner,wataash/Karabiner,e-gaulue/Karabiner