Link to more up-to-date FuncGodot plugin in CSG Tools, add Cyclops Level Builder

Qodot is now in maintenance mode and has been superseded by FuncGodot.

tutorials/3d/csg_tools.rst

@@ -20,10 +20,9 @@ Interior environments can be created by using inverted primitives.
           without holes.
 
           If you're looking for an easy to use level design tool for a project,
-          you may want to use `Qodot <https://github.com/QodotPlugin/Qodot>`__
-          instead. It lets you design levels using
-          `TrenchBroom <https://kristianduske.com/trenchbroom/>`__ and import
-          them in Godot.
+          you may want to use `FuncGodot <https://github.com/func-godot/func_godot_plugin>`__
+          or `Cyclops Level Builder <https://github.com/blackears/cyclopsLevelBuilder>`__
+          instead.
 
 .. video:: video/csg_tools.webm
    :alt: CSG being used to subtract a torus shape from a box