Small app testing ability to use cf token for local development

[jduss4]

Changes proposed in this pull request:

This is a proof-of-concept experiment whereby a small application is passed your local CF oauth token and can use it to access a CF API.

Security considerations

• This application should not be deployed to a cloud environment, nor will it function there.
• Your local oauth token supplied by the CF CLI is available to you to inspect and decode. Although this is probably not its intended use, I don't perceive any particular security concerns around using it to contact the CF API it was intended for use with.

[echappen]

LGTM—this paints the picture on how to use the CF token once we have it. Depending on how long the token is good for, I could see us using this to get started working with real data in prototypes.