Create ID3v2 tag for AIFF files within `createAppropriateTags()`

Wikipedia says an ID3v2 tag can be added and other software seems to be
able to cope with it.

mediafileinfo.cpp

@@ -601,6 +601,7 @@ bool MediaFileInfo::createAppropriateTags(const TagCreationSettings &settings)
         if (!hasAnyTag() && !(flags & TagCreationFlags::TreatUnknownFilesAsMp3Files)) {
             switch (containerFormat()) {
             case ContainerFormat::Adts:
+            case ContainerFormat::Aiff:
             case ContainerFormat::MpegAudioFrames:
             case ContainerFormat::WavPack:
                 break;