feat: added preserver class & method to preserve assembly loading

Engine.Physics2D/Preserver.cs

@@ -0,0 +1,10 @@
+namespace Syntriax.Engine.Physics2D
+{
+    // This is pretty much so the assembly gets loaded automatically because 
+    // the builds include the assembly but sometimes doesn't link load it at startup.
+    // I will hopefully one day fix it and remove this. 
+    public static class Preserver
+    {
+        public static void Preserve() { }
+    }
+}