Support for additional event sources

## Prerequisites

* [x] I am running the latest version. (`up upgrade`)
* [x] I searched to see if the issue already exists.
* [ ] I inspected the verbose debug output with the `-v, --verbose` flag.
* [x] Are you an Up Pro subscriber?

## Description

So far I have seen that up creates API Gateway as source for lambda. Is it possible to create other event sources, like dynamodb tables, s3, kinesis, etc? I haven't seen any mention of them in the documentation. Is this in the plan to be supported at some point?

## Love Up?

Loving Up! Subscribed for Pro version.