update for moviepy 2.0.0

[drmbt]

since the release of moviepy 2.0.0 this node will no longer isntall properly

from https://zulko.github.io/moviepy/getting_started/updating_to_v2.html

Before v2.0, it was advised to import from moviepy.editor whenever you needed to do some sort of manual operations, such as previewing or hand editing, because the editor package was in charge of a lot of magic and initialization, making your life easier, at the cost of initializing some complex modules like pygame.

With version 2.0, the moviepy.editor namespace simply no longer exists. You simply import everything from moviepy like this:

from moviepy import * # Simple and nice, the __all__ is set in moviepy so only usefull things will be loaded
from moviepy import VideoFileClip # You can also import only the things you really need```