remove kappa dependency and add kappa as a module [DON'T MERGE YET]

[souravjamwal77]

This commit is the first step towards removing Kappa as a dependency of Zappa, so that we can add latest and more AWS features and not be limited by the features offered by Kappa.
Issue: #954

[lmuther8]

Can I work on this PR with you @souravjamwal77 ? I want to help some other event issues ( #1343 ), but I think it makes sense to do this first.

[souravjamwal77]

@lmuther8 Sure. Let's connect on the weekend. I was planning to do this in May but got occupied with something else.

[monkut]

@souravjamwal77

Sorry, the initial step wasn't to bring the kappa source code into zappa, but rather wrap it's usage so that kappa could be refactored out eventually.

[souravjamwal77]

@monkut You can send me the steps on Slack. I'm little occupied but this week will atleast get this started.

[github-actions]

Hi there! Unfortunately, this PR has not seen any activity for at least 90 days. If the PR is still relevant to the latest version of Zappa, please comment within the next 10 days if you wish to keep it open. Otherwise, it will be automatically closed.