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.

addons/godot-git-plugin/git_plugin.gdextension

@@ -0,0 +1,10 @@
+[configuration]
+
+entry_symbol = "git_plugin_init"
+compatibility_minimum = "4.2.0"
+
+[libraries]
+
+linux.editor.x86_64 = "linux/libgit_plugin.linux.editor.x86_64.so"
+macos.editor = "macos/libgit_plugin.macos.editor.universal.dylib"
+windows.editor.x86_64 = "windows/libgit_plugin.windows.editor.x86_64.dll"