[Feature] Implement `new` to be able to instantiate objects

[ByteWolf-dev]

Is there an existing proposal for this?

• [X] I have searched the existing issues

This feature does not exist in the latest version

• [X] I am using the latest version

Proposal

We want to implement the new keyword so that objects can be instantiated.

Exact behaviour / changes you want

Here is an example:

class Person {
    name: str;

    constructor(name: str) {
        this.name = name;
    }
}

// Instantiate the class
const person = new Person("Alice", 30);```

[Luna-Klatzer]

Implemented by #689