Move entity effects definitions to shared (#35614)

* Move entity effects to shared

* relocate spawning to server

* Generic version of EntityEffect for just raising event.

* genericise everything

* oops forgot to push you

* some condensation

* finish rebas

* unwhite the space

* oops forgot nuke

* bad rebase fix

* useless annotations begone

---------

Co-authored-by: EmoGarbage404 <retron404@gmail.com>

Content.Shared/EntityEffects/Effects/ChemVomit.cs

@@ -0,0 +1,19 @@
+using Robust.Shared.Prototypes;
+
+namespace Content.Shared.EntityEffects.Effects;
+
+/// <summary>
+/// Forces you to vomit.
+/// </summary>
+public sealed partial class ChemVomit : EventEntityEffect<ChemVomit>
+{
+    /// How many units of thirst to add each time we vomit
+    [DataField]
+    public float ThirstAmount = -8f;
+    /// How many units of hunger to add each time we vomit
+    [DataField]
+    public float HungerAmount = -8f;
+
+    protected override string? ReagentEffectGuidebookText(IPrototypeManager prototype, IEntitySystemManager entSys)
+        => Loc.GetString("reagent-effect-guidebook-chem-vomit", ("chance", Probability));
+}