Add tooltips to sandbox playground configs

[danielcaldas]

Is your feature request related to a problem? Please describe.
There is a lot and good documentation about all the properties that users can try in the live examples. It would be awesome to have that information directly available (as well) in the live example.

Describe the solution you'd like
Add information about each one of the properties in graph.config.js to the live sandbox. This information can be extracted from the jsdoc itself with some parse job.

Additional context
Step by step of the approach would be:

1. Parse jsdoc of graph.config.js into useful text that could be used within tooltips for these properties in the configuration form of the live examples.
2. Consume this information from some JS/JSON file and bind it to the JSON schema of the configuration form.

[danielcaldas]

Closing with #240