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/EntityEffectCondition.cs

@@ -20,3 +20,10 @@ public abstract partial class EntityEffectCondition
     public abstract string GuidebookExplanation(IPrototypeManager prototype);
 }
 
+[ByRefEvent]
+public struct CheckEntityEffectConditionEvent<T> where T : EntityEffectCondition
+{
+    public T Condition;
+    public EntityEffectBaseArgs Args;
+    public bool Result;
+}