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

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

Content.Shared/EntityEffects/Effects/Polymorph.cs

@@ -0,0 +1,19 @@
+using Content.Shared.Polymorph;
+using Robust.Shared.Prototypes;
+using Robust.Shared.Serialization.TypeSerializers.Implementations.Custom.Prototype;
+
+namespace Content.Shared.EntityEffects.Effects;
+
+public sealed partial class Polymorph : EventEntityEffect<Polymorph>
+{
+    /// <summary>
+    ///     What polymorph prototype is used on effect
+    /// </summary>
+    [DataField("prototype", customTypeSerializer:typeof(PrototypeIdSerializer<PolymorphPrototype>))]
+    public string PolymorphPrototype { get; set; }
+
+    protected override string? ReagentEffectGuidebookText(IPrototypeManager prototype, IEntitySystemManager entSys)
+    => Loc.GetString("reagent-effect-guidebook-make-polymorph",
+            ("chance", Probability), ("entityname",
+                prototype.Index<EntityPrototype>(prototype.Index<PolymorphPrototype>(PolymorphPrototype).Configuration.Entity).Name));
+}