added install info for exiftool, imagemagick and freeimage
added install info for exiftool, imagemagick and freeimage

samuels410/vision-on,7EHR4F/my_photo_booth,7EHR4F/my_photo_booth,samuels410/vision-on,asgora/balder1,mathieujobin/balder,sonphamhong/photo_gallery,tshifflett/balder,dvictory/balder,samuels410/vision-on,sonphamhong/photo_gallery,tshifflett/balder,espen/balder,mathieujobin/balder,asgora/balder1,espen/balder,sadfuzzy/balder,dvictory/balder,sonphamhong/photo_gallery,7EHR4F/my_photo_booth,sadfuzzy/balder,sadfuzzy/balder,mathieujobin/balder,dvictory/balder,espen/balder,asgora/balder1,tshifflett/balder