feat: IPhysicsIteration interface added

Engine.Physics2D/Abstract/Updates/IPhysicsIteration.cs

@@ -0,0 +1,15 @@
+using Syntriax.Engine.Core;
+
+namespace Syntriax.Engine.Physics2D;
+
+/// <summary>
+/// Represents a <see cref="IBehaviour"/> that listens to physics simulation update phase.
+/// </summary>
+public interface IPhysicsIteration : IBehaviour
+{
+    /// <summary>
+    /// Iterates the physics state of the object based on the elapsed time since the last iteration.
+    /// </summary>
+    /// <param name="delta">The time elapsed since the last physics iteration.</param>
+    void PhysicsIterate(float delta);
+}