Add barebone nuke (#5242)

Co-authored-by: Alexander Evgrashin <evgrashin.adl@gmail.com>

Content.Server/Nuke/NukeCodePaperComponent.cs

@@ -0,0 +1,14 @@
+using Robust.Shared.GameObjects;
+
+namespace Content.Server.Nuke
+{
+    /// <summary>
+    ///     Paper with a written nuclear code in it.
+    ///     Can be used in mapping or admins spawn.
+    /// </summary>
+    [RegisterComponent]
+    public class NukeCodePaperComponent : Component
+    {
+        public override string Name => "NukeCodePaper";
+    }
+}