first seed selection on quality

First implementation of a seed selection based on quality. /cc @adye and @ncalace

This is not the final implementation due to the way the bottom/middle/top index gets retrieved. A final solution would require a change to the seed/space point EDM from the ACTS side. I'm working on it. But for the time being this will serve the purpose (removes ~25% of PPP seeds).

The selection is run on all the seeds. The code will then remove the seeds that didn't pass the selection criterion so that they are not saved in StoreGate. A flag will enable/disable this seed selection.

This selection is only possible for PPP seeds.