Removed single-pixel gap in top bar

Added conditional support to 'CS gift military units' unique

Moved city state icons to separate folder

Fixed tests failing due to removing "crutches"

Removed backwards compatibility for missing city-state uniques

Moddable quest weighting for city-states

Allowed adding arbitrary global uniques to city state bonuses 

Fixed 'friendly territory' using correct open borders - see 4dca183

AbsoluteUnits - Unique Spearmen  - By letstalkaboutdune