added base helpers and a simple test.

GodotHelper/src/MyNodeExtensions.cs

@@ -0,0 +1,46 @@
+namespace GodotHelpers;
+
+using System;
+using System.Linq;
+using Godot;
+
+
+public static class MyNodeExtensions
+{
+  public static void FreeDeferred(this Node node) => node.CallDeferred(GodotObject.MethodName.Free);
+  /// <summary>
+  /// Checks if given Property exists on <c>Base</c>
+  /// </summary>
+  /// <param name="Base">Current <c>GodotObject</c></param>
+  /// <param name="PropertyName">Property Name</param>
+  /// <returns><c>bool</c> true if given property exists on Base</returns>
+  public static bool HasProperty(this GodotObject Base, string PropertyName)
+  {
+    /*
+    Returns the object's property list as an Godot.Collections.Array of dictionaries.
+    Each Godot.Collections.Dictionary contains the following entries:
+    - name is the property's name, as a string;
+    - class_name is an empty StringName, unless the property is Variant.Type.Object and it inherits from a class;
+    - type is the property's type, as an int (see Variant.Type);
+    - hint is how the property is meant to be edited (see PropertyHint);
+    - hint_string depends on the hint (see PropertyHint);
+    - usage is a combination of PropertyUsageFlags.
+    */
+    foreach (var Property in Base.GetPropertyListEx())
+    {
+      if (Property.Name == PropertyName)
+      {
+        return true;
+      }
+    }
+
+    return false;
+  }
+  public static (Node node, Resource resource, NodePath remaining) GetNodeAndResourceEx(this Node self, NodePath path)
+  {
+    var result = self.GetNodeAndResource(path);
+    return ((Node)result[0], (Resource)result[1], (NodePath)result[2]);
+  }
+  public static void QueueFreeChildren(this Node node) => node.GetChildren().ToList().ForEach(item => item.QueueFree());
+  public static void QueueFreeChildren(this Node node, Func<Node, bool> predicate) => node.GetChildren().Where(predicate).ToList().ForEach(item => item.QueueFree());
+}