Update ResourceHandlerReg. API for Resource handling

This change adds new methods in the ResourceHandlerRegistration API
for registering ResourceResolvers and ResourceTransformers, allowing
to better handle server-side resources in web applications.i

Here is an example of configuration for an HTML5 web application
that uses JavaScript and HTML5 appcache manifests:

    registry.addResourceHandler("/**")
      .addResourceLocations("classpath:static/")
      .addTransformer(new AppCacheManifestTransfomer())
      .addVersion("v1", "/**/*.js")
      .addVersionHash("/**");

Issue: SPR-11982