ResourceLocator Enhancement - Ability to add paths

[cogmission]

        // Idea: Build up ResourceLocator paths in fluent style such as:
        // Layer.using(
        //     ResourceLocator.addPath("...") // Adds a search path for later mentioning terminal resources (i.e. files)
        //         .addPath("...")
        //         .addPath("..."))
        //     .add(new SpatialPooler())
        //     ...