Add PhantomCamera components and UI elements for improved scene management; refactor existing components for better integration

addons/phantom_camera/scripts/managers/PhantomCameraManager.cs

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+using System.Linq;
+using Godot;
+
+#nullable enable
+
+namespace PhantomCamera.Manager;
+
+public static class PhantomCameraManager
+{
+    private static GodotObject? _instance;
+
+    public static GodotObject Instance => _instance ??= Engine.GetSingleton("PhantomCameraManager");
+
+    public static PhantomCamera2D[] PhantomCamera2Ds =>
+        Instance.Call(MethodName.GetPhantomCamera2Ds).AsGodotArray<Node2D>()
+            .Select(node => new PhantomCamera2D(node)).ToArray();
+
+    public static PhantomCamera3D[] PhantomCamera3Ds =>
+        Instance.Call(MethodName.GetPhantomCamera3Ds).AsGodotArray<Node3D>()
+            .Select(node => new PhantomCamera3D(node)).ToArray();
+
+    public static PhantomCameraHost[] PhantomCameraHosts =>
+        Instance.Call(MethodName.GetPhantomCameraHosts).AsGodotArray<Node>()
+            .Select(node => new PhantomCameraHost(node)).ToArray();
+
+    public static PhantomCamera2D[] GetPhantomCamera2Ds() => PhantomCamera2Ds;
+    public static PhantomCamera3D[] GetPhantomCamera3Ds() => PhantomCamera3Ds;
+    public static PhantomCameraHost[] GetPhantomCameraHosts() => PhantomCameraHosts;
+
+    public static class MethodName
+    {
+        public const string GetPhantomCamera2Ds = "get_phantom_camera_2ds";
+        public const string GetPhantomCamera3Ds = "get_phantom_camera_3ds";
+        public const string GetPhantomCameraHosts = "get_phantom_camera_hosts";
+    }
+}

addons/phantom_camera/scripts/managers/PhantomCameraManager.cs.uid

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+uid://vtj8iqx4bp43