Feature to generate example json for each request and param value

[buraequete]

Referring to #191 , with these detailed json schema definitions of beans, by utilizing this tool, we can generate some example json objects, and can store these in RAML, as example value for each request body, which would be useful for test tools.

[stojsavljevic]

Same as for #191, this might be useful but I can't work on this atm.
So please consider a PR.