Mouse rotator system (#19267)

Co-authored-by: metalgearsloth <31366439+metalgearsloth@users.noreply.github.com>

Content.Shared/Movement/Components/NoRotateOnMoveComponent.cs

@@ -0,0 +1,12 @@
+using Robust.Shared.GameStates;
+
+namespace Content.Shared.Movement.Components;
+
+/// <summary>
+/// This is used for entities which shouldn't have their local rotation set when moving, e.g. those using
+/// <see cref="MouseRotator"/> instead
+/// </summary>
+[RegisterComponent, NetworkedComponent]
+public sealed partial class NoRotateOnMoveComponent : Component
+{
+}