Add duplicate filename diagnostics

serato_doctor/models/__init__.py

@@ -1,4 +1,5 @@
 from serato_doctor.models.crate import Crate, CrateKind
+from serato_doctor.models.duplicate import DuplicateGroup, DuplicateKind
 from serato_doctor.models.health import HealthReport
 from serato_doctor.models.library import Library
 from serato_doctor.models.match import MatchEvidence, TrackMatch
@@ -9,6 +10,8 @@ __all__ = [
     "Crate",
     "CrateKind",
     "DiskTrack",
+    "DuplicateGroup",
+    "DuplicateKind",
     "HealthReport",
     "Library",
     "MatchEvidence",