Add Aaruformat validation and media item type (#29)

* Initial `media` and AaruFormat code

* But... why?

* Fix AIF reading

* Fix D2D, Logiqx cleanup

* Minor cleanup

* Final cleanup round

SabreTools/Features/Verify.cs

@@ -28,6 +28,7 @@ namespace SabreTools.Features
             AddFeature(HashOnlyFlag);
             AddFeature(QuickFlag);
             AddFeature(HeaderStringInput);
+            AddFeature(AaruFormatsAsFilesFlag);
             AddFeature(ChdsAsFilesFlag);
             AddFeature(IndividualFlag);
             AddInternalSplitFeatures();