Enhanced Taxi Missions v0.8.3

• Added 69 new locations
• Implemented customer nudging loop. If customers get stuck, you can now
  honk at them multiple times to try to get them in your car
• Customers now have blips attached to them while they get into your
  car, to make it easier for the player to see where their customers are
• Location searching algorithm now tries to find pick-up locations
  within 500 meters of the player's location instead of 1000 meters,
  meaning pick-ups will be closer to the player's current location and not
  require as much driving
• Optimized location searching algorithm. UI now doesn't disappear while
  the script selects a new pick-up and destination location.
• Increased ped spawn distance from 100 to 130 meters.
• Customers now carry random amounts of money ;)
• UI now displays "Taxi Driver" instead of "Limousine Driver" when the
  player is in a taxi. Still shows "Limousine Driver" in other cars.
• Cleaned up some possible Null Reference occurrences when picking up
  customers