[Discussion] renaming rudr bind to rudr attach

[zzxwill]

In the original design specs, we use rudr bind to attach a trait to a component. @hongchaodeng suggested me to use rudr attach instead. I check that Heroku also uses a similar command heroku addon:attach to bind a backing service, operation tool to a component https://docs.google.com/document/d/1nSLcklrSg38GAdqJNFZIgjpb2X9_6cCm8wl8bgJnjog/edit#heading=h.6yuoa46ooqhf.

So I propose for the renaming.

[wonderflow]

agree