Bite 85. Write a score property

After Bite 19. Write a simple property let's write a bit more advanced one.

In this Bite you are presented with a NinjaBelt class that keeps track of scores and Ninja Belts earned (a very real scenario). Some setup code has been provided like the _score and _last_earned_belt variables and the getter and setter methods that make up the property.

The goal is to write a property called score that does the following:

1. Make sure it can only be assigned an integer,
2. It can not be assigned a score lower than the current score,
3. It checks in BELTS if a new belt was earned (for example going from 49 to 50 you earn the yellow belt), if so it stores it in self._last_earned_belt.
4. For each new score print a message:
   • If a new badge was earned: "Congrats, you earned {score} points obtaining the PyBites Ninja {rank} Belt" (where rank is the name of the belt titlecased, e.g. White, Yellow, etc.)
   • Else just the new score: "Set new score to {score}"

See the TESTS tab for more info. Good luck, have fun and keep calm and code in Python!