adds game over credits (#74)

## Changes
- Adds game over credits

Reviewed-on: gymkhana/gymkhana#74
Reviewed-by: Eneko Nieto <eneko@eneko.ovh>
Co-authored-by: oier <oierbravo@gmail.com>
Co-committed-by: oier <oierbravo@gmail.com>

gymkhana/rooms/turno_cocina/creditos/scrollingText.tscn

@@ -0,0 +1,59 @@
+[gd_scene load_steps=3 format=2]
+
+[ext_resource path="res://gymkhana/logo-small.png" type="Texture" id=1]
+[ext_resource path="res://gymkhana/rooms/turno_cocina/creditos/scrollingText.gd" type="Script" id=2]
+
+[node name="scrollingText" type="VBoxContainer"]
+margin_left = 357.0
+margin_right = 922.0
+margin_bottom = 437.0
+script = ExtResource( 2 )
+
+[node name="LabelContainer" type="HBoxContainer" parent="."]
+margin_right = 565.0
+margin_bottom = 133.0
+
+[node name="margin" type="MarginContainer" parent="LabelContainer"]
+margin_right = 280.0
+margin_bottom = 65.0
+size_flags_horizontal = 3
+size_flags_vertical = 0
+
+[node name="Titles" type="Label" parent="LabelContainer/margin"]
+margin_right = 280.0
+margin_bottom = 65.0
+size_flags_horizontal = 3
+size_flags_vertical = 0
+text = "Un poco de todo:
+
+
+Agradecimientos:"
+align = 2
+uppercase = true
+
+[node name="margin2" type="MarginContainer" parent="LabelContainer"]
+margin_left = 284.0
+margin_right = 565.0
+margin_bottom = 133.0
+size_flags_horizontal = 3
+size_flags_vertical = 0
+
+[node name="Names" type="Label" parent="LabelContainer/margin2"]
+margin_right = 281.0
+margin_bottom = 133.0
+size_flags_horizontal = 3
+size_flags_vertical = 0
+text = "Eneko
+Oier
+
+
+Miette
+Niko
+Piko
+Urtzi"
+
+[node name="TextureRect" type="TextureRect" parent="."]
+margin_top = 137.0
+margin_right = 565.0
+margin_bottom = 437.0
+texture = ExtResource( 1 )