Replace `System.out.println` with logging framework

[mrizzi]

While testing the Windup Diva addon, it turned out the console output has a lot of System.out.println [link to one sample below] entries that would be great if moved into a logging framework at (my suggestion) DEBUG level.

tackle-diva/core/src/main/java/io/tackle/diva/analysis/JPAAnalysis.java

Line 110 in ea087c5

System.out.println(f + "->" + Util.getAnnotations(f));