Heist Vehicles in SP v2.0

Whats new 2.0:
-More vehicles spawn
-Some vehicles drive around certain areas of the map
-Slightly improved algorithm for spawning
 
Features:
-Heist vehicles from GTA:O will now spawn naturally in single player
(Location guide: https://www.youtube.com/watch?v=2u7A9IuRScM&feature=youtu.be)
-Hesit vehicles drive around in some areas of the city
-Vehicles are loaded when the player is in range to better manage memory
-Vehicles will respawn after a while

Known issues:
-None

Reuploading:
You may reupload, modify, and use code from this program without my permission.
I feel providing source code allows the modding community to grow.  I only request
that you credit me when you do.

Credits:
-Plastic Tangerine for main coding
-Alexander Blade for scripthook and parts of code from his trainer