Achievements (VBS)

BTD6 has achievements that will be gotten by doing certain things. More Coming soon!
 * 1) Welcome: Enter the game for the first time
 * 2) Tutorial: Finish the tutorial on any track
 * 3) Monkey lane: Finish monkey lane on all difficulty
 * 4) Monkey sub: Defeat 1,000,000 bloons
 * 5) Moab proof: Defeat In the hole