Rotatable: Allow specifying the rotation increment on the component (#5948)

Content.Shared/Rotatable/RotatableComponent.cs

@@ -1,6 +1,7 @@
 using Robust.Shared.GameObjects;
 using Robust.Shared.Serialization.Manager.Attributes;
 using Robust.Shared.ViewVariables;
+using Robust.Shared.Maths;
 
 namespace Content.Shared.Rotatable
 {
@@ -22,5 +23,12 @@ namespace Content.Shared.Rotatable
         [ViewVariables(VVAccess.ReadWrite)]
         [DataField("rotateWhilePulling")]
         public bool RotateWhilePulling { get; protected set; } = true;
+
+        /// <summary>
+        ///     The angular value to change when using the rotate verbs.
+        /// </summary>
+        [ViewVariables(VVAccess.ReadWrite)]
+        [DataField("increment")]
+        public Angle Increment { get; protected set; } = Angle.FromDegrees(90);
     }
 }