Refactor project management and enhance architecture

Added a new static class `AssetsPath` for asset management.
Added a new icon file (`icon-256.ico`) for UI representation.
Added new package references to enhance functionality.
Added internals visibility attributes for better testing.
Added a new `EngineEditorViewModel` class for MVVM support.
Added a new `GameObject` class for component management.
Added a new `BitSet` class for efficient bit manipulation.
Added various utility classes to support the new entity system.

Changed the `ID` property in `ProjectInfo` to internal.
Changed the `AddProjectAsync` method to return the created `ProjectInfo`.
Changed the connection string retrieval method to use the new `Command` constant.
Changed the `DataPath` class to use `readonly` fields for folder paths.
Changed the `ActivationHandler` class to use new `DataPath` constants.
Changed the `OpenProjectPage` layout and interaction for better UI.

Updated the target framework to a newer version for compatibility.
Updated the `ProjectService` to use new constants from `DataPath`.
Updated the `World` class to improve entity management.

Refactored the `ProjectRepository` class to encapsulate SQL commands.
Refactored the `Transform` class to use properties for better encapsulation.

Ghost.Entities/Registries/ComponentRegistry.cs

@@ -0,0 +1,22 @@
+namespace Ghost.Entities.Registries;
+
+internal static class ComponentRegistry
+{
+    private static readonly Dictionary<Type, ComponentData> _hashCodeToComponentMap = new(64);
+
+    public static unsafe ComponentData GetOrAdd<T>()
+        where T : unmanaged, IComponent
+    {
+        var type = typeof(T);
+        if (_hashCodeToComponentMap.TryGetValue(type, out var data))
+        {
+            return data;
+        }
+
+        var id = (ushort)_hashCodeToComponentMap.Count;
+        data = new ComponentData(id, sizeof(T));
+        _hashCodeToComponentMap.Add(type, data);
+
+        return data;
+    }
+}