Multi-map and multi-station gameticker loading (#6167)

Content.Server/Station/Components/BecomesStationComponent.cs

@@ -0,0 +1,21 @@
+using Content.Server.GameTicking;
+using Robust.Shared.Analyzers;
+using Robust.Shared.GameObjects;
+using Robust.Shared.Serialization.Manager.Attributes;
+
+namespace Content.Server.Station;
+
+/// <summary>
+///     Added to grids saved in maps to designate that they are the 'main station' grid.
+/// </summary>
+[RegisterComponent, ComponentProtoName("BecomesStation")]
+[Friend(typeof(GameTicker))]
+public class BecomesStationComponent : Component
+{
+    /// <summary>
+    ///     Mapping only. Should use StationIds in all other
+    ///     scenarios.
+    /// </summary>
+    [DataField("id", required: true)]
+    public string Id = default!;
+}

Content.Server/Station/Components/PartOfStationComponent.cs

@@ -0,0 +1,18 @@
+using Content.Server.GameTicking;
+using Robust.Shared.Analyzers;
+using Robust.Shared.GameObjects;
+using Robust.Shared.Serialization.Manager.Attributes;
+
+namespace Content.Server.Station;
+
+/// <summary>
+///     Added to grids saved in maps to designate them as 'part of a station' and not main grids. I.e. ancillary
+///     shuttles for multi-grid stations.
+/// </summary>
+[RegisterComponent, ComponentProtoName("PartOfStation")]
+[Friend(typeof(GameTicker))]
+public class PartOfStationComponent : Component
+{
+    [DataField("id", required: true)] // does yamllinter even lint maps for required fields?
+    public string Id = default!;
+}