Update Dog entity with new textures and animations. Add Level 4 scene with game elements and UI components.

levels/rules/level_4_rules.tres

@@ -0,0 +1,16 @@
+[gd_resource type="Resource" script_class="GameRulesResource" load_steps=2 format=3 uid="uid://2xo8nkuq5g35"]
+
+[ext_resource type="Script" path="res://components/scripts/game_rules.gd" id="1_c8fak"]
+
+[resource]
+script = ExtResource("1_c8fak")
+level_number = 4
+level_name = "Level Four"
+level_description = "Hazard introduction - it's a dog!"
+bees_available = 60
+nectar_required = 100
+level_par = 4
+collector_enabled = true
+dancer_enabled = true
+director_enabled = false
+distractor_enabled = true