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/EventEntityEffectCondition.cs

@@ -0,0 +1,14 @@
+namespace Content.Shared.EntityEffects;
+
+public abstract partial class EventEntityEffectCondition<T> : EntityEffectCondition where T : EventEntityEffectCondition<T>
+{
+    public override bool Condition(EntityEffectBaseArgs args)
+    {
+        if (this is not T type)
+            return false;
+
+        var evt = new CheckEntityEffectConditionEvent<T> { Condition = type, Args = args };
+        args.EntityManager.EventBus.RaiseEvent(EventSource.Local, ref evt);
+        return evt.Result;
+    }
+}