Pipebombs and IED rework (#25705)

* inital

* 2-9

* add crafting function, rename ied to fire bomb

* add firebomb ignition

* fikss

* change damage values

* add note

* fix tests i think

* ok

* good

* Review

* warning

---------

Co-authored-by: metalgearsloth <comedian_vs_clown@hotmail.com>

Content.Shared/Explosion/ExplosionPrototype.cs

@@ -25,6 +25,12 @@ public sealed partial class ExplosionPrototype : IPrototype
     [DataField("damagePerIntensity", required: true)]
     public DamageSpecifier DamagePerIntensity = default!;
 
+    /// <summary>
+    ///     Amount of firestacks to apply in addition to igniting.
+    /// </summary>
+    [DataField]
+    public float? FireStacks;
+
     /// <summary>
     ///     This set of points, together with <see cref="_tileBreakIntensity"/> define a function that maps the
     ///     explosion intensity to a tile break chance via linear interpolation.