Dumpable component to use a doafter to empty storage into a disposal unit, placeable surface, or the ground (#7792)

Content.Shared/Storage/Components/DumpableComponent.cs

@@ -0,0 +1,23 @@
+using System.Threading;
+
+namespace Content.Shared.Storage.Components
+{
+    /// <summary>
+    /// Lets you dump this container on the ground using a verb,
+    /// or when interacting with it on a disposal unit or placeable surface.
+    /// </summary>
+    [RegisterComponent]
+    public sealed class DumpableComponent : Component
+    {
+        /// <summary>
+        /// How long each item adds to the doafter.
+        /// </summary>
+        [DataField("delayPerItem")]
+        public TimeSpan DelayPerItem = TimeSpan.FromSeconds(0.2);
+
+        /// <summary>
+        /// Cancellation token for the doafter.
+        /// <summary>
+        public CancellationTokenSource? CancelToken;
+    }
+}