Adding "Clear" Function For Cleaning The Terminal

[TarsisioXavier]

The Feature

This is a new function that can be used to clear the user's terminal.
It doesn't break anything else since it works with it's own classes.

Possibly Usage

• Cleaning the terminal before running the script for a better user experience.
• Erase sensitive information outputted by the script or inputted by the user.

[jessarcher]

Thanks @TarsisioXavier

I made a few small tweaks, mostly so that any output after clear won't have top padding.

Before	After