1. Define a Class property
2. Build a Class function
3. Access a Class property from an instance function.
4. Build a Class function that access a Class property.

The goal of this lab is to build a Question class in question.js that can store all instances, save them, retrieve them, and find them.

Define a Question class using the class syntax of Javascript.

Add a property, _All to the Question class and initialize its value to an empty Array.

Define a class function with the static keyword, All() that returns the value of the class property _All.

Define a save() instance function that can add the instance to the _All class property.

The Question constructor should accept the content of the question and set that as an instance property of the question via a question instance property.

Additionally, the constructor should save the new instance by calling the save() instance function.

Build a static class function that can return the question by Id. The function should allow you to reference the Id of the question, not its index within the _All array. If there are 3 questions in _All, Find(2) should return the second one, not the 3 one.