Ling update (#183)

* - add: Augmented Eyesight.

* - add: Dissonant Shriek.

* - tweak: Nuke use delays.

* - tweak: Tweak chemical regeneration and chemical costs.

* - add: Add chitinous helmet.

* - fix: Fix chem regeneration while dead.

* - tweak: Faster fleshmend.

* - add: Void Adaptation.

* - tweak: No lesser form delay.

* - tweak: Lesser form tweaks.

* - tweak: Stasis doafter is hidden now.

* - add: Refund after absorbing.

* - tweak: Some tweaks.

Content.Shared/Changeling/SharedChangeling.cs

@@ -1,5 +1,6 @@
-using Content.Shared.Actions;
+using Content.Shared.Actions;
 using Content.Shared.DoAfter;
+using Content.Shared.Inventory;
 using Robust.Shared.Serialization;
 
 namespace Content.Shared.Changeling;
@@ -97,3 +98,34 @@ public sealed partial class BiodegradeActionEvent : InstantActionEvent
 {
 }
 
+public sealed partial class AugmentedEyesightActionEvent : InstantActionEvent
+{
+}
+
+[Serializable, NetSerializable]
+public sealed class AugmentedEyesightPurchasedEvent : EntityEventArgs
+{
+}
+
+public sealed partial class DissonantShriekActionEvent : InstantActionEvent
+{
+}
+
+[Serializable, NetSerializable]
+public sealed class VoidAdaptationPurchasedEvent : EntityEventArgs
+{
+}
+
+public sealed class ChemRegenModifyEvent : EntityEventArgs, IInventoryRelayEvent
+{
+    public SlotFlags TargetSlots => ~SlotFlags.POCKET;
+
+    public float Multiplier = 1f;
+}
+
+public sealed class ChangelingRefundEvent : EntityEventArgs, IInventoryRelayEvent
+{
+    public SlotFlags TargetSlots => SlotFlags.All;
+
+    public EntityUid Store;
+}