add syndicate singularity beacon (#18486)

* implement singulo attraction

* add attractor syndie item

* cleanup

* fix name/desc

* actually fix name

* singulo toolbox no longer whitelisted

* add custom sprite, overhaul prototype

* address review

* beacon real

* webedit 1

* webedit 2

* webedit 3

* permalink to copyright

---------

Co-authored-by: deltanedas <39013340+deltanedas@users.noreply.github.com>

Content.Server/Physics/Components/RandomWalkComponent.cs

@@ -1,3 +1,4 @@
+using System.Numerics;
 using Content.Server.Physics.Controllers;
 
 namespace Content.Server.Physics.Components;
@@ -29,6 +30,18 @@ public sealed partial class RandomWalkComponent : Component
     [ViewVariables(VVAccess.ReadWrite)]
     public float AccumulatorRatio = 0.0f;
 
+    /// <summary>
+    /// The vector by which the random walk direction is biased.
+    /// </summary>
+    [DataField, ViewVariables(VVAccess.ReadWrite)]
+    public Vector2 BiasVector = new Vector2(0f, 0f);
+
+    /// <summary>
+    /// Whether to set BiasVector to (0, 0) every random walk update.
+    /// </summary>
+    [DataField, ViewVariables(VVAccess.ReadWrite)]
+    public bool ResetBiasOnWalk = true;
+
     /// <summary>
     /// Whether this random walker should take a step immediately when it starts up.
     /// </summary>