Cutting Holes Into Mesh

We be cutting holes :)

demo/project.godot

@@ -18,3 +18,11 @@ config/icon="res://icon.svg"
 [debug_draw_3d]
 
 settings/addon_root_folder="res://addons/debug_draw_3d"
+
+[input]
+
+left_click={
+"deadzone": 0.2,
+"events": [Object(InputEventMouseButton,"resource_local_to_scene":false,"resource_name":"","device":-1,"window_id":0,"alt_pressed":false,"shift_pressed":false,"ctrl_pressed":false,"meta_pressed":false,"button_mask":0,"position":Vector2(0, 0),"global_position":Vector2(0, 0),"factor":1.0,"button_index":1,"canceled":false,"pressed":false,"double_click":false,"script":null)
+]
+}