Fixed import bug in decode.py

Fixed markup parameters

Deleted tests/test_chart due how useless it is

Added markup to encode() / decode() and improved README.md

Added lots of terminal commands and everything related to them

Deleted unnecessary files

Fixed major encode() / decode() bug and removed all sound play functionality

Added ( and ) to the dictionary

Improved comments and other tiny things

Improved type annotations again

Added unit tests for play_sounddevice()

Added play_sounddevice.py

Added sounddevice audio play suport

Reorganized project's structure

Improved audio play system