Refactors radiation (#2009)

* Work on refactoring radiation.

* mmmm grayons

* fixes

* Now you can specify whether the pulse will decay or not

* whoops

* Move IRadiationAct to shared, make DamageableComponent implement it instead and add metallic resistances to walls

* General improvements, send draw and decay with state. Rename DPS to RadsPerSecond

* E N T I T Y  C O O R D I N A T E S

* Entity coordinates goood

* Remove unused using statements

* resistances: metallicResistances

* - type: Breakable moment

Co-authored-by: DrSmugleaf <DrSmugleaf@users.noreply.github.com>

Content.Shared/Interfaces/GameObjects/Components/Interaction/IRadiationAct.cs

@@ -0,0 +1,10 @@
+using Content.Shared.GameObjects.Components;
+using Robust.Shared.Interfaces.GameObjects;
+
+namespace Content.Shared.Interfaces.GameObjects.Components
+{
+    public interface IRadiationAct : IComponent
+    {
+        void RadiationAct(float frameTime, SharedRadiationPulseComponent radiation);
+    }
+}