add mono c# (using dotnet9.0 from https://github.com/dotnet/runtime), add ECS (entt), add some c# code, add fastNoise

Prism-ScriptCore/Src/Prism/Entity.cs

@@ -0,0 +1,61 @@
+using System.Runtime.CompilerServices;
+
+namespace Prism
+{
+    public class Entity
+    {
+        public uint SceneID { get; private set; }
+        public uint EntityID { get; private set; }
+
+        ~Entity()
+        {
+            Console.WriteLine("Destroyed Entity {0}:{1}", SceneID, EntityID);
+        }
+
+        public T CreateComponent<T>() where T : Component, new()
+        {
+            CreateComponent_Native(SceneID, EntityID, typeof(T));
+            T component = new T();
+            component.Entity = this;
+            return component;
+        }
+
+        public bool HasComponent<T>() where T : Component, new()
+        {
+            return HasComponent_Native(SceneID, EntityID, typeof(T));
+        }
+
+        public T GetComponent<T>() where T : Component, new()
+        {
+            if (HasComponent<T>())
+            {
+                T component = new T();
+                component.Entity = this;
+                return component;
+            }
+            return null;
+        }
+
+        public Mat4 GetTransform()
+        {
+            Mat4 mat4Instance;
+            GetTransform_Native(SceneID, EntityID, out mat4Instance);
+            return mat4Instance;
+        }
+
+        public void SetTransform(Mat4 transform)
+        {
+            SetTransform_Native(SceneID, EntityID, ref transform);
+        }
+
+        [MethodImpl(MethodImplOptions.InternalCall)]
+        private static extern void CreateComponent_Native(uint sceneID, uint entityID, Type type);
+        [MethodImpl(MethodImplOptions.InternalCall)]
+        private static extern bool HasComponent_Native(uint sceneID, uint entityID, Type type);
+        [MethodImpl(MethodImplOptions.InternalCall)] 
+        private static extern void GetTransform_Native(uint sceneID, uint entityID, out Mat4 matrix);
+        [MethodImpl(MethodImplOptions.InternalCall)]
+        private static extern void SetTransform_Native(uint sceneID, uint entityID, ref Mat4 matrix);
+
+    }
+}