Support for Nested Resources in the Pipe

Currently the Pipe mechanism doesn't support nested resources e.g in a form

soccer.org/leagues/{id}/teams/{id}/players/{id}

As per discussions in the mailing list[1] , it was decided to enhance pipe methods with additional parameter 'resourcePath', to point to the nested resource.

This epic will track progress for the implementation of the feature in the different platforms.

[1] http://aerogear-dev.1069024.n5.nabble.com/aerogear-dev-Aerogear-Pipeline-Support-for-nested-endpoints-td1874.html