Feature request: Score the collective team utility level

[ReneRebsdorf]

I think it would be great to draw inspiration from lhm.gg where they have this:

It shows a 'Team utility level' above the player stats as an aggregated value, which provides a quick at-a-glance of the teams economy and opportunity going into the round.

[drweissbrot]

I'm personally not really interested in this currently, but will keep this open if anyone else wants to create a PR or in case I change my mind :D

@ReneRebsdorf Do you have suggestions on cutoffs for the levels?