fix SDL2_IMAGE_VERSION_STRING
fix SDL2_IMAGE_VERSION_STRING

before: SDL2_image.dll (found version "..")
after: SDL2_image.dll (found version "2.0.1")
fifengine/fifengine,fifengine/fifengine,Niektory/fifengine,Niektory/fifengine,Niektory/fifengine,fifengine/fifengine