Provide samples with "Groovy" TLDs

Many users trying GSPs with boot will be doing so for the first time. One of GSPs strengths is the extensive TLD definitions. For those that are not new to Grails, integrating with Boot will certainly be new. It would be real cool to see an example of using some of the TLD extensions. A few tags that come to mind are:
- [Fields Plugin](http://freeside.co/grails-fields/guide/single.html) ``
- [Paginate](http://grails.org/doc/2.3.x/ref/Tags/paginate.html) ``

Please keep in mind that I am not a Grails expert, so these libraries are simply suggestions. The point is to demo some of the coolest GSP libraries out there.

Not knowing the code internals I suppose it is possible some libraries will not work with Boot. I think trying to ensure (or work towards) the entire ecosystem is available will be very valuable.

Start by locating the existing GSP and TLD sample documentation in the Grails repository. Review the suggested Fields Plugin and Paginate examples and verify which libraries work with Boot; the work is done when representative Groovy TLD examples are documented and usable.

Written by the indexing model from the issue text.