Add title bar game stats like in ironwail

[josephreynolds1]

Please add title bar states like ironwail.

[Novum]

I disagree with this. No other game does this and most people will play games in full screen. If there is a case for improving showing scores on screen I'm open to it.

In the meantime I added a binding for "show scores" to the key menu so it's clear that this is available bd7f269beee5a5c078e8fee860a52fe1ce66bf5b