Print art name in random mode

[Sepand Haghighi]

Description

Some arts are not printable in all environments.
In random mode, we should print the art name.

Steps/Code to Reproduce

>>> from art import *
>>> aprint("random")

Expected Behavior

[Warning] 'art-x' is not printable in this environment.

Actual Behavior

[Warning] 'random` is not printable in this environment.

Operating System

Windows 10

Python Version

Python 3.8

ART Version (Use : art.__version__)

ART 6.0