Update and change the version in ytmp3 module dynamically

[mitsuki31]

Overview

Instead using a constant value that needs to be changed when release, we change it to use dynamic method which retrieve the version information from package.json file.

This also addressed the issue with versions 1.0.1 and 1.0.2, where the version in ytmp3 module was not altered and remained at 1.0.0.

Testing

You can compare both value of version from the ytmp3 module and package.json file.

node -p "require('ytmp3-js').version" && node -p "require('ytmp3-js/package.json').version"