DLC/Add-On Vehicles Spawn on Traffic 1.4

Script modification that fixes the appearance of DLC and added vehicles in street traffic.

Installation:
Make sure you have Script Hook V and ScriptHookV.NET installed;
Copy the mod files to the "scripts" folder where your game is installed.

What's new in v1.4:
Added option to disable vehicle upgrades;
Removed spawn from Mount Chiliad;
Found bugs fixed.