SnapGridComponent Removal (#3884)

* Removed SnapGridOffset, there is only center now.

* SnapGridComponent methods are now static.

* Removed SnapGridComponent.OnPositionChanged.

* Refactored static functions off SnapGridComponent to MapGrid.
Refactored away usages of SnapGridComponent.Position.

* Added Transform.Anchored for checking if an entity is a tile entity.
More refactoring for static MapGrid functions.

* Static snapgrid methods on MapGrid are no longer static.

* Add setter to ITransformComponent.Anchored.
Removed direct references to SnapGridComponent from content.

* Grid functions now deal with EntityUids instead of SnapGridComponents.
Began renaming public API functions from SnapGrid to Anchor.

* Remove the SnapGridComponent 'Offset' field from all yaml files. This was removed in code previously, so the yaml linter was upset.

* Update engine submodule to v0.4.46.

Content.Server/Construction/Completions/SnapToGrid.cs

@@ -4,10 +4,8 @@ using Content.Server.Utility;
 using Content.Shared.Construction;
 using JetBrains.Annotations;
 using Robust.Shared.GameObjects;
-using Robust.Shared.Serialization;
 using Robust.Shared.Maths;
 using Robust.Shared.Serialization.Manager.Attributes;
-using YamlDotNet.Serialization;
 
 namespace Content.Server.Construction.Completions
 {
@@ -15,14 +13,13 @@ namespace Content.Server.Construction.Completions
     [DataDefinition]
     public class SnapToGrid : IGraphAction
     {
-        [DataField("offset")] public SnapGridOffset Offset { get; private set; } = SnapGridOffset.Center;
         [DataField("southRotation")] public bool SouthRotation { get; private set; } = false;
 
         public async Task PerformAction(IEntity entity, IEntity? user)
         {
             if (entity.Deleted) return;
 
-            entity.SnapToGrid(Offset);
+            entity.SnapToGrid();
             if (SouthRotation)
             {
                 entity.Transform.LocalRotation = Angle.Zero;