Add cargo shuttle (#8686)

Content.Shared/Cargo/Components/CargoShuttleComponent.cs

@@ -0,0 +1,31 @@
+using Robust.Shared.Map;
+
+namespace Content.Shared.Cargo.Components;
+
+/// <summary>
+/// Present on cargo shuttles to provide metadata such as preventing spam calling.
+/// </summary>
+[RegisterComponent, Access(typeof(SharedCargoSystem))]
+public sealed class CargoShuttleComponent : Component
+{
+    [ViewVariables(VVAccess.ReadWrite), DataField("nextCall")]
+    public TimeSpan? NextCall;
+
+    [ViewVariables(VVAccess.ReadWrite), DataField("cooldown")]
+    public float Cooldown = 45f;
+
+    [ViewVariables]
+    public bool CanRecall;
+
+    /// <summary>
+    /// The shuttle's assigned coordinates on the cargo map.
+    /// </summary>
+    [ViewVariables]
+    public EntityCoordinates Coordinates;
+
+    /// <summary>
+    /// The assigned station for this cargo shuttle.
+    /// </summary>
+    [ViewVariables, DataField("station")]
+    public EntityUid? Station;
+}