Comment node

I'd like the ability to add notes to the graph. Currently I just make a Group node and use the title as the note, scale it down so it's just the title bar and no body. It works to an extent, but it's clunky and text won't wrap, is too large, etc. Picture a post-it note to add comments next to the graph nodes. There are a couple other small quality of life things I often run into, I'll share them as they come to mind.