Generic clothing speed modifiers + hardsuit slowdown (#7094)

Content.Shared/Clothing/ClothingSpeedModifierComponent.cs

@@ -0,0 +1,36 @@
+using Robust.Shared.GameStates;
+using Robust.Shared.Serialization;
+
+namespace Content.Shared.Clothing;
+
+[RegisterComponent, NetworkedComponent, Friend(typeof(ClothingSpeedModifierSystem))]
+public sealed class ClothingSpeedModifierComponent : Component
+{
+    [DataField("walkModifier", required: true)] [ViewVariables(VVAccess.ReadWrite)]
+    public float WalkModifier = 1.0f;
+
+    [DataField("sprintModifier", required: true)] [ViewVariables(VVAccess.ReadWrite)]
+    public float SprintModifier = 1.0f;
+
+    /// <summary>
+    ///     Is this clothing item currently 'actively' slowing you down?
+    ///     e.g. magboots can be turned on and off.
+    /// </summary>
+    [DataField("enabled")] public bool Enabled = true;
+}
+
+[Serializable, NetSerializable]
+public sealed class ClothingSpeedModifierComponentState : ComponentState
+{
+    public float WalkModifier;
+    public float SprintModifier;
+
+    public bool Enabled;
+
+    public ClothingSpeedModifierComponentState(float walkModifier, float sprintModifier, bool enabled)
+    {
+        WalkModifier = walkModifier;
+        SprintModifier = sprintModifier;
+        Enabled = enabled;
+    }
+}