Make Il2CppProvider actually process FixedUpdate coroutines

Author: sinai-dev

src/Core/Runtime/Il2Cpp/Il2CppProvider.cs

@@ -43,19 +43,24 @@ private void Application_logMessageReceived(string condition, string stackTrace,
             ExplorerCore.LogUnity(condition, type);
         }
 
-        public override void StartCoroutine(IEnumerator routine)
+        public override void Update()
         {
-            Il2CppCoroutine.Start(routine);
+            Il2CppCoroutine.Process();
         }
 
         internal override void ProcessOnPostRender()
         {
             Il2CppCoroutine.ProcessWaitForEndOfFrame();
         }
 
-        public override void Update()
+        internal override void ProcessFixedUpdate()
         {
-            Il2CppCoroutine.Process();
+            Il2CppCoroutine.ProcessWaitForFixedUpdate();
+        }
+
+        public override void StartCoroutine(IEnumerator routine)
+        {
+            Il2CppCoroutine.Start(routine);
         }
 
         public override T AddComponent<T>(GameObject obj, Type type)