Move the real player authority to server

- Add rust bindings for the server player controller
- Implement reconciliation loop for checking the player state
- Place spawners on the test map
- Add Containerfile and helm chart

scenes/maps/base/player_spawner/player_spawner.tscn

@@ -6,7 +6,7 @@
 script = ExtResource("1_2hsyd")
 
 [node name="MultiplayerSpawner" type="MultiplayerSpawner" parent="."]
-_spawnable_scenes = PackedStringArray("res://scenes/characters/placeholder.tscn")
+_spawnable_scenes = PackedStringArray("res://scenes/characters/placeholder.tscn", "res://scenes/player/placeholder.tscn")
 spawn_path = NodePath("../Players")
 spawn_limit = 10