feat(aws/router): allow more complex routing

[NamesMT]

Router's routes is now able to take an object for finer control/complex usage

Types:

Use example:

Update 04/05: more advanced use example Assets is my custom component to build a static frontend app into a bucket.

Tested locally, working dev, HMR, deploy Tested to be backward-compatible

The committed PR contains a commentted bit, feel free to remove it.

[jayair]

Interesting, let me ask Frank to take a look

[fwang]

Router added supports for s3 origins and CF edge functions.

we are moving sst/ion -> sst/sst and unfortunately this is going to be a messy process because of github's limitations

i'm going to close this PR for now and it can be re-opened in the new sst/sst repo that will be ready in the next few days if still relevant