Add a command and verb to attach a body part to yourself (#2372)

* Add attachbodypart command

* Make the slot name depend on the verb instead of the command

Content.Shared/GameObjects/Components/Body/IBody.cs

@@ -56,6 +56,8 @@ namespace Content.Shared.GameObjects.Components.Body
 
         bool HasPart(string slot);
 
+        bool HasPart(IBodyPart part);
+
         /// <summary>
         ///     Removes the given <see cref="IBodyPart"/> reference, potentially
         ///     dropping other <see cref="IBodyPart">BodyParts</see> if they

Content.Shared/GameObjects/Components/Body/Part/SharedBodyPartComponent.cs

@@ -286,7 +286,8 @@ namespace Content.Shared.GameObjects.Components.Body.Part
 
         private void AddedToBody(IBody body)
         {
-            Owner.Transform.AttachParent(Body!.Owner);
+            Owner.Transform.LocalRotation = 0;
+            Owner.Transform.AttachParent(body.Owner);
             OnAddedToBody(body);
 
             foreach (var mechanism in _mechanisms)

Content.Shared/GameObjects/Components/Body/SharedBodyComponent.cs

@@ -145,6 +145,13 @@ namespace Content.Shared.GameObjects.Components.Body
             return _parts.ContainsKey(slot);
         }
 
+        public bool HasPart(IBodyPart part)
+        {
+            DebugTools.AssertNotNull(part);
+
+            return _parts.ContainsValue(part);
+        }
+
         public void RemovePart(IBodyPart part)
         {
             DebugTools.AssertNotNull(part);