Cleanup

src/Core/FileTime.Core/Timeline/ContainerSnapshot.cs

@@ -0,0 +1,7 @@
+namespace FileTime.Core.Timeline
+{
+    public class ContainerSnapshot
+    {
+        
+    }
+}

src/Core/FileTime.Core/Timeline/PointInTime.cs

@@ -0,0 +1,12 @@
+using System.Collections.ObjectModel;
+using FileTime.Core.Providers;
+
+namespace FileTime.Core.Timeline
+{
+    public class PointInTime
+    {
+        private readonly Dictionary<IContentProvider, RootSnapshot> snapshots = new();
+
+        public IReadOnlyDictionary<IContentProvider, RootSnapshot> Snapshots => new Lazy<IReadOnlyDictionary<IContentProvider, RootSnapshot>>(() => new ReadOnlyDictionary<IContentProvider, RootSnapshot>(snapshots)).Value;
+    }
+}

src/Core/FileTime.Core/Timeline/RootSnapshot.cs

@@ -0,0 +1,7 @@
+namespace FileTime.Core.Timeline
+{
+    public class RootSnapshot
+    {
+        
+    }
+}