Move async methods into class methods

[jkimbo]

@Cito I've started moving the async methods into class methods to see if it will improve performance (#142 )

Unfortunately it doesn't seem to have improved things (0001_class_m is this branch and NOW is main):

I don't think its worth carrying on with this change. What do you think?

[Cito]

Yes, it looks like defining the functions outside makes things even worse (maybe because the function name is not local any more). I was not sure about that, so it's good we know now.

The next step would be to create an execution context that assumes every resolver is async and is optimized for that case, and see if that can improve performance significantly.

Sorry, I'm currently too busy with other work and cannot help much. But I will also work on this eventually if nobody else does.

[Cito]

Closing this now, thanks for trying. Mentioned the outcome in #142.