implement the creational builder pattern

[CelinaAssal]

Problem

Currently, run.py is quite large, making it difficult for developers to understand it at first look. Building an object within this file only adds to the complexity, which goes against coding best practices.

Solution

A solution to this is to apply the creational design pattern of builder. The builder pattern is the most efficient solution to this problem as it allows the creation of an object that has several working parts, of which each part needs to come together to create one single object.

How?

I have created the file multisim_run_builder.py which creates a run object through using the builder pattern. In this file, I have the IBuilder class, which contains the necessary methods for the run object. The Product class then creates the object. The Builder class then builds the object. And finally, the Director class which runs each method.