Move sample

[trevor-scheer]

Sample code shouldn't live in the src directory. You can see here since it ends up in dist that this code gets installed by package consumers.

I see two reasonable solutions:

• Use a monorepo structure using Typescript project references and npm workspaces - kind of overkill for this project and the simplicity of a single package repo is nice.
• Create a separate repo for an example and link to it.