Add option to dump full compiled configuration (optionally in json) #197

Hi,

I would like to see exactly what my aide uses as configuration.

aide --config=/etc/aide/aide.conf --config-check --log-level=rule 

does something like that, but that obviously does not include variable definitions. Since Variables are not interpolated in the ouput, I get @@{NAME} in the output, but I dont know what @@{NAME} expands to

And, the beautiful output around the rule makes it hard to cut&paste.

And, the output generated on stderr makes it harde to grep.

Greetings
Marc