Implements procedural ground tile generation

Adds procedural ground tile generation with chunking for improved performance.

Includes:
- Ground tile entity with debug text and cell information
- Grass and tree placement based on cell data
- Ground shader for visual representation
- Chunk loading and unloading system based on player position

project.godot

@@ -61,17 +61,21 @@ jump={
 
 wind_direction={
 "type": "vec3",
-"value": Vector3(5, 1, 5)
+"value": Vector3(0.45, 0, -0.83)
 }
 wind_noise_size={
 "type": "float",
-"value": 0.1
+"value": 2.0
 }
 wind_noise_speed={
 "type": "float",
-"value": 0.2
+"value": 0.1
 }
 wind_strength={
 "type": "float",
-"value": 7.0
+"value": 0.5
+}
+player_position={
+"type": "vec3",
+"value": Vector3(0, 0, 0)
 }