gd,refacto: added state chart addon and namespace cleanup

addons/godot_state_charts/csharp/NodeWrapper.cs

@@ -0,0 +1,49 @@
+// ReSharper disable once CheckNamespace
+namespace GodotStateCharts
+{
+    using Godot;
+    
+    /// <summary>
+    /// Base class for all wrapper classes. Provides some common functionality. Not to be used directly.
+    /// </summary>
+    public abstract class NodeWrapper
+    {
+        /// <summary>
+        /// The wrapped node.
+        /// </summary>
+        protected readonly Node Wrapped;
+
+        protected NodeWrapper(Node wrapped)
+        {
+            Wrapped = wrapped;
+        }
+          
+        /// <summary>
+        /// Allows to connect to signals on the wrapped node.
+        /// </summary>
+        /// <param name="signal"></param>
+        /// <param name="method"></param>
+        /// <param name="flags"></param>
+        public Error Connect(StringName signal, Callable method, uint flags = 0u)
+        {
+            return Wrapped.Connect(signal, method, flags);
+        }
+        
+        
+        /// <summary>
+        /// Allows to call methods on the wrapped node deferred.
+        /// </summary>
+        public Variant CallDeferred(string method, params Variant[] args)
+        {
+            return Wrapped.CallDeferred(method, args);
+        }
+        
+        /// <summary>
+        /// Allows to call methods on the wrapped node.
+        /// </summary>
+        public Variant Call(string method, params Variant[] args)
+        {
+            return Wrapped.Call(method, args);
+        }
+    }
+}