feat(redis): implement redis in wasip2

[asteurer]

I didn't realize that @rajatjindal may have already been working the Redis portion until I had already written everything 😬 . My feelings won't be hurt if we need to scrap this one in favor of his implementation.

closes #26

[rajatjindal]

didn't realize that @rajatjindal may have already been working the Redis portion until I had already written everything 😬 . My feelings won't be hurt if we need to scrap this one in favor of his implementation.

this is not a problem at all. happy to review this implementation.

could you please take redis example from existing wasip1 code, and make sure it works with wasip2. Also we need to implement redis-inbound. If you want to do that as a separate PR, that is fine as well. 👍

[asteurer]

Thanks for the feedback! I adjusted the redis-outbound example to match the wasip1 example; however, I had to alter the NewClient method to return an error, which is an alteration to the API. Let me know if that needs to change. I tried to get the redis-inbound working; however, it got complicated haha. I'll try it in another PR.

[adamreese]

Here's some initial feedback. I'll do some manual testing next

[adamreese]

Note to future self: Looks like some return types changed. This was int64.

[adamreese]

Thanks for taking on outbound redis!