added styling to package list

Signed-off-by: Dominik Richter <dominik.richter@gmail.com>
print summary count for nodes and packages next to their title

Signed-off-by: Dominik Richter <dominik.richter@gmail.com>
define default value for showConfig

Signed-off-by: Dominik Richter <dominik.richter@gmail.com>