Merge crosstabs+config with postmodeling config

[saleiro]

[ivanhigueram]

More than adding the crosstabs parameters to the postmodeling_config. I would first suggest to move the code from that repo and move it to Triage. There's an outdated cross tabs code in the postmodeling component, I think that's a good place.

[ivanhigueram]

There's a workaround in postmodeling to handle the crosstabs part, but ideally, the user would run both components at the same time. We can talk this later, but for now having both codes in the same repo is quite helpful.