added cool animation to springs

Pegs/Yellow/Powerups/Spawn/FromBottom.tscn

@@ -0,0 +1,35 @@
+[gd_scene load_steps=3 format=2]
+
+[ext_resource path="res://Pegs/Yellow/Powerups/Spawn/FromBottom.gd" type="Script" id=2]
+
+[sub_resource type="ParticlesMaterial" id=1]
+emission_shape = 2
+emission_box_extents = Vector3( 192, 1, 1 )
+flag_disable_z = true
+direction = Vector3( 0, -100, 0 )
+flatness = 1.0
+gravity = Vector3( 0, 98, 0 )
+initial_velocity = 224.0
+orbit_velocity = 0.0
+orbit_velocity_random = 0.0
+color = Color( 0.454902, 0.337255, 0.607843, 1 )
+
+[node name="FromBottom" type="Node2D"]
+script = ExtResource( 2 )
+
+[node name="Timer" type="Timer" parent="."]
+wait_time = 10.0
+one_shot = true
+autostart = true
+
+[node name="Particles2D" type="Particles2D" parent="."]
+position = Vector2( 192, 0 )
+z_index = -20
+emitting = false
+amount = 128
+lifetime = 2.0
+one_shot = true
+explosiveness = 0.5
+process_material = SubResource( 1 )
+
+[connection signal="timeout" from="Timer" to="." method="queue_free"]