Added first setup of level-based system

Level2/wave3.tres

@@ -0,0 +1,13 @@
+[gd_resource type="Resource" script_class="WaveConfig" format=3 uid="uid://cricfym5wcf3w"]
+
+[ext_resource type="Script" uid="uid://cbwxa2a4hfcy4" path="res://Scripts/Resources/enemy.gd" id="1_a61ug"]
+[ext_resource type="Resource" uid="uid://cvehqh4tt28g7" path="res://Enemies/BabyEyeDog/baby_eye_dog.tres" id="2_3ov7j"]
+[ext_resource type="Script" uid="uid://bp6q371iypd06" path="res://Scripts/wave_config.gd" id="2_47xps"]
+
+[resource]
+script = ExtResource("2_47xps")
+enemies = Dictionary[ExtResource("1_a61ug"), int]({
+ExtResource("2_3ov7j"): 10
+})
+rewards_blank_cassette = true
+metadata/_custom_type_script = "uid://bp6q371iypd06"