Print results table at the end of an evaluation session

[nkaenzig]

Closes #336

[ioangatop]

@nkaenzig could we make the matrix 3 columns, like mean, stdev and all (all the values separated by commas)? because in different smaller terminal this will not wrap nicely i think.. what do you think?

Also maybe we can round up to the 3d third digit, as the analytical results could be found in the output files

[nkaenzig]

@ioangatop Good point, I updated the tables now accordingly (see screenshot above).