Evaluate the use of multithreading and concurrency

[lyashevska]

Evaluate the use of multithreading and concurrency to speed reading scans and/or creating graphs.

Two modules will be evaluated:

1. Multithreading with threading module can be useful, although for CPU-bound tasks multithreading may not provide a significant performance improvement.

2. Concurrency can be achieved through the use of the asyncio module. In this way multiple tasks can be executed concurrently in a single thread. Asynchronous programming is particularly useful for I/O-bound tasks (tasks that spend most of their time waiting for input or output).