gd: added menu template

addons/maaacks_game_template/base/scenes/opening/opening.tscn

@@ -0,0 +1,27 @@
+[gd_scene load_steps=2 format=3 uid="uid://sikc02ddepyt"]
+
+[ext_resource type="Script" uid="uid://dtco0s8byckx6" path="res://addons/maaacks_game_template/base/scenes/opening/opening.gd" id="1_fcjph"]
+
+[node name="Opening" type="Control"]
+layout_mode = 3
+anchors_preset = 15
+anchor_right = 1.0
+anchor_bottom = 1.0
+grow_horizontal = 2
+grow_vertical = 2
+script = ExtResource("1_fcjph")
+next_scene = "res://addons/maaacks_game_template/base/scenes/menus/main_menu/main_menu.tscn"
+
+[node name="BackgroundMusicPlayer" type="AudioStreamPlayer" parent="."]
+process_mode = 3
+autoplay = true
+bus = &"Music"
+
+[node name="ImagesContainer" type="MarginContainer" parent="."]
+unique_name_in_owner = true
+layout_mode = 1
+anchors_preset = 15
+anchor_right = 1.0
+anchor_bottom = 1.0
+grow_horizontal = 2
+grow_vertical = 2