Added buch of stuff

nodes/world/terrain_editor.tscn

@@ -0,0 +1,22 @@
+[gd_scene load_steps=2 format=3 uid="uid://ddyulj4dsrkms"]
+
+[ext_resource type="Script" uid="uid://vnjdiql72brq" path="res://nodes/world/terrain_editor.gd" id="1_6evft"]
+
+[node name="TerrainEditor" type="Node"]
+script = ExtResource("1_6evft")
+
+[node name="Control" type="HBoxContainer" parent="."]
+anchors_preset = 12
+anchor_top = 1.0
+anchor_right = 1.0
+anchor_bottom = 1.0
+grow_horizontal = 2
+grow_vertical = 0
+alignment = 1
+
+[node name="Button" type="Button" parent="Control"]
+layout_mode = 2
+toggle_mode = true
+text = "Block Edit"
+
+[connection signal="toggled" from="Control/Button" to="." method="_on_button_toggled"]