perf: Drastically Improved Memory Usage

TIL, records are not value types and are actually just reference types. So I was pretty much allocating from heap every time I used any of my data types (Like Vector2D). Needless to say, they are all now readonly structs as I originally intended them to be.

Engine.Physics2D/PhysicsMaterial2DDefault.cs

@@ -1,6 +1,10 @@
+using Syntriax.Engine.Physics2D.Abstract;
+
 namespace Syntriax.Engine.Physics2D;
 
-public record PhysicsMaterial2DDefault : PhysicsMaterial2D
+public readonly struct PhysicsMaterial2DDefault : IPhysicsMaterial2D
 {
-    public PhysicsMaterial2DDefault() : base(.1f, .1f) { }
+    public readonly float Friction => .1f;
+
+    public readonly float Restitution => .1f;
 }