Alignment of client service APIs between Db and Web Clients.

[tomas-langer]

Signed-off-by: Tomas Langer tomas.langer@oracle.com

This is the new aligned approach (metrics and tracing):

        dbClient = DbClient.builder()
                .config(config.get("dbclient"))
                .addService(DbClientMetrics.counter().nameFormat("db.counter.%1$s.%2$s"))
                .addService(DbClientTracing.create())
                .build();

        webClient = WebClient.builder()
                .baseUri("http://localhost:8080/greet")
                .config(config.get("webclient"))
                .addMediaSupport(JsonpSupport.create())
                .addService(WebClientMetrics.counter().nameFormat("counter.%1$s.%2$s.%3$d"))
                .addService(WebClientTracing.create())
                .build();

Resolves #1776