graphics/darktable: Enable ISOBMFF support (CR3, AVIF, HEIF)

This relies on the BMFF support in graphics/exiv2 which is enabled
already.

This was requested from the following forum thread:
https://forums.freebsd.org/threads/cr3-not-opening-in-darktable-with-libraw-and-exiv2.87817/

graphics/darktable/Makefile

@@ -1,6 +1,6 @@
 PORTNAME=	darktable
 PORTVERSION=	4.4.2
-PORTREVISION=	3
+PORTREVISION=	4
 CATEGORIES=	graphics
 MASTER_SITES=	https://github.com/darktable-org/${PORTNAME}/releases/download/release-${PORTVERSION:C/\.rc/rc/}/
 
@@ -56,8 +56,8 @@ SHEBANG_FILES=	tools/*.sh
 CMAKE_ARGS+=	-DBINARY_PACKAGE_BUILD=1 -DUSE_PORTMIDI:BOOL=OFF
 
 CMAKE_BOOL+=	BUILD_CMSTEST USE_AVIF USE_CAMERA_SUPPORT USE_HEIF \
-		USE_KWALLET USE_LUA USE_MAP USE_OPENEXR USE_OPENJPEG \
-		USE_WEBP RAWSPEED_ENABLE_LTO
+		USE_ISOBMFF USE_KWALLET USE_LUA USE_MAP USE_OPENEXR \
+		USE_OPENJPEG USE_WEBP RAWSPEED_ENABLE_LTO
 
 CFLAGS+=	-fopenmp -I${LOCALBASE}/include/Imath
 LDFLAGS+=	-L${LOCALBASE}/lib