Add navmap beacons (#19388)

Content.Shared/Pinpointer/NavMapBeaconComponent.cs

@@ -0,0 +1,19 @@
+using Robust.Shared.GameStates;
+
+namespace Content.Shared.Pinpointer;
+
+/// <summary>
+/// Will show a marker on a NavMap.
+/// </summary>
+[RegisterComponent, NetworkedComponent, AutoGenerateComponentState]
+public sealed partial class NavMapBeaconComponent : Component
+{
+    /// <summary>
+    /// Defaults to entity name if nothing found.
+    /// </summary>
+    [ViewVariables(VVAccess.ReadWrite), DataField("text"), AutoNetworkedField]
+    public string? Text;
+
+    [ViewVariables(VVAccess.ReadWrite), DataField("color"), AutoNetworkedField]
+    public Color Color = Color.Orange;
+}