feat: Add core map generation and management system

- Introduced MapData, MapGenerator, and MapPainter classes for procedural map generation.
- Implemented LevelManager to handle level initialization and navigation.
- Created TurnManager for managing turn order in a turn-based system.
- Added Player and Enemy character classes with movement and turn-taking capabilities.
- Established pathfinding using AStar2D in PathfindingHandler.
- Integrated new scenes for player and enemy characters, along with world setup.
- Included a new tileset for futuristic Zelda-themed assets.

scenes/actors/player.tscn

@@ -0,0 +1,22 @@
+[gd_scene format=3 uid="uid://1ls2pjitfl5m"]
+
+[ext_resource type="Script" uid="uid://ciusoegxdh344" path="res://scripts/actors/player.gd" id="1_ru62r"]
+[ext_resource type="Texture2D" uid="uid://b7s06o6gm42rn" path="res://assets/sprites/icon.svg" id="2_ktjr4"]
+
+[sub_resource type="RectangleShape2D" id="RectangleShape2D_qfnet"]
+size = Vector2(32, 32)
+
+[node name="Player" type="CharacterBody2D" unique_id=179780959]
+script = ExtResource("1_ru62r")
+
+[node name="Sprite2D" type="Sprite2D" parent="." unique_id=29528982]
+scale = Vector2(0.25, 0.25)
+texture = ExtResource("2_ktjr4")
+
+[node name="CollisionShape2D" type="CollisionShape2D" parent="." unique_id=272748828]
+shape = SubResource("RectangleShape2D_qfnet")
+
+[node name="Camera2D" type="Camera2D" parent="." unique_id=2033102226]
+position_smoothing_enabled = true
+drag_horizontal_enabled = true
+drag_vertical_enabled = true