Customisable startup wizard

[loujaybee]

There is a very simplistic startup wizard right now, that just runs aws vault

https://github.com/openupthecloud/open-cloud-dev-box/blob/main/collect-credentials.sh

Then opens the AWS dashboard:

https://github.com/openupthecloud/open-cloud-dev-box/blob/main/open-cloud-dashboards.sh

We should look into improving this script so that:

1. It asks you about the various tools you want to setup (so that it doesn't assume everything)
2. You can configure it via a configuration file (e.g. json or yaml) - so that if you have opted in or out for certain answers in the wizard, the configuration can be stored and updated so you don't have to re-answer the questions.