Re-organize all projects (#4166)

Content.Shared/Construction/Steps/ConstructionGraphStep.cs

@@ -0,0 +1,21 @@
+#nullable enable
+using System;
+using System.Collections.Generic;
+using Robust.Shared.Serialization.Manager.Attributes;
+using Robust.Shared.Utility;
+
+namespace Content.Shared.Construction.Steps
+{
+    [Serializable]
+    [ImplicitDataDefinitionForInheritors]
+    public abstract class ConstructionGraphStep
+    {
+        [DataField("completed", serverOnly: true)] private List<IGraphAction> _completed = new();
+
+        [DataField("doAfter")] public float DoAfter { get; private set; }
+
+        public IReadOnlyList<IGraphAction> Completed => _completed;
+
+        public abstract void DoExamine(FormattedMessage message, bool inDetailsRange);
+    }
+}