Added generic TreeNode class

GlitchyEngine/src/Collections/TreeNode.bf

@@ -0,0 +1,48 @@
+using System.Collections;
+
+namespace GlitchyEngine.Collections
+{
+	public class TreeNode<T>
+	{
+		public T Value;
+
+		public List<Self> Children = new .() ~ DeleteContainerAndItems!(_);
+
+		public this() {}
+
+		public this(T value)
+		{
+			Value = value;
+		}
+
+		public Self AddChild(T value)
+		{
+			for (var child in Children)
+			{
+				if(child.Value == value)
+					return child;
+			}
+
+			Self newChild = new .(value);
+
+			Children.Add(newChild);
+
+			return newChild;
+		}
+
+		public Self FindNode(T value)
+		{
+			if (Value == value)
+				return this;
+
+			for (var child in Children)
+			{
+				var childResult = child.FindNode(value);
+				if (childResult != null)
+					return childResult;
+			}
+
+			return null;
+		}
+	}
+}