- Split ImageAspect into 2 types, ImageAspect for images and ImageAspectScreenFilter for screens

- Change ImageDetails into a class and add some accessors for the filtering logic for screen aspect and image aspect

src/slide.pro

@@ -38,6 +38,7 @@ SOURCES += \
         overlay.cpp \
         imageselector.cpp \
         appconfig.cpp \
+        imagestructs.cpp \
         logger.cpp
 
 HEADERS += \