Turn ReagentEffects into generic EntityEffects (#28168)

* Oh the possibilities

* Merge fixes

* Forgot to remote LavaSystem oops

* Changed EntityEffectArgs to EntityEffectBaseArgs and EntityEffectReagentArgs

* Throw exception for unimplemented effectargs

* Remove Json and overrideable datafields

* Fix test issues

* Actually fix the compiling issue

* Fix comments and remove EntityEffectArgs (no longer used, replaced with EntityEffectBaseArgs)

Content.Server/Tiles/TileEntityEffectComponent.cs

@@ -0,0 +1,19 @@
+using Content.Shared.Chemistry.Reagent;
+using Content.Shared.EntityEffects;
+using Robust.Shared.Audio;
+using Robust.Shared.GameStates;
+
+namespace Content.Server.Tiles;
+
+/// <summary>
+/// Applies effects upon stepping onto a tile.
+/// </summary>
+[RegisterComponent, Access(typeof(TileEntityEffectSystem))]
+public sealed partial class TileEntityEffectComponent : Component
+{
+    /// <summary>
+    /// List of effects that should be applied.
+    /// </summary>
+    [ViewVariables(VVAccess.ReadWrite), DataField]
+    public List<EntityEffect> Effects = default!;
+}