Slightly fixed the common police car's replacements in non-specific areas.

Technical info:
CarLightsPolice - "Alternate" now on par with "General" (was 25% Sheriff/75% KST instead of 20% Sheriff/80% KST).

Added icon to mod list.
Internal change: Restructured the LUA file.

Louisville International Airport changes:
Common police vehicle:
- 50% Airport Security (was 33.3%)
- 12.5% County PD (was 33.3%)
- 37.5% State Trooper (was 33.3%)
Rarer police vehicle:
- 60% Airport Security (unchanged)
- 10% County PD (was 20%)
- 30% State Trooper (was 20%)

Explanation for the changes:
As it turns out, the LIA region - apparently - only covers the airport itself (not even the roads around it). As it is a major transportation hub, it would make sense for state authorities (i.e. State Troopers) to have a major presence in the area, more than local authorities (i.e. County Police) who would be busy "defending" other areas in the county. Thus, I decided to change the ratio of State-to-County police forces in the area, as well as making airport security also have a slightly greater presence.

Added in-game preview image.
Valley Station - police pickup van is now 50% County PD, 50% State Trooper (as opposed to reusing the 100% State Trooper generic setup).

Initial release.