Meaningful last match wins/losses

[colega]

Fixes https://github.com/kinduff/csgo_exporter/issues/30

t_wins and ct_wins are nonsense numbers

Also set the wins to be green, losses to be red, and total rounds just gray.

This is how it looks on the light scheme:

And dark:

You can see the example here: https://grafana.colega.eu/d/csgo-for-issue-30/csgo-fix-for-issue-30?orgId=2

Although it won't be there forever...

Signed-off-by: Oleg Zaytsev mail@olegzaytsev.com

[kinduff]

Thank you @colega!