Goals:
    -Organize a library of musics automatically
    -Mp3 metadata's management (other extensions soon)
    -Renaming of files depending on metadatas
    -Organisation of files depending on the Artist and the Album, starting to a root folder

Naming conventions:
    -Each special character is deleted (ASCII Table), i.e which is referenced in string.punctuation for instance
        -"'" is excepted and it'll be replaced by "_"
    -The filename is lowercased
    -Every word's first letter is uppercased as seen in other conventions (including Artist's, Album's and Song's names)
    -Expressions between parentheses, braces or square brackets are deleted from the final filename
    -If a number exist (like the tack number for instance), it stays and it's formated like '01 - L...'

Examples :
    -Root folder :
        "/home/music/"

    -Initial filename :
        "06_Smoke_On_The_Water_[Live].mp3"    
        
    -Metadatas : 
        artist="Deep Purple"
        album="Rock"
        title="Smoke On The Water [Live]"
        ...

    -Ultimate filename with its root folder :
        "/home/music/Deep Purple/Rock/Smoke on the water.mp3"


    -Root folder :
        "/home/music"

    -Initial filename :
        "08-instance-with_éèâ.mp3"

    -Metadatas :
        artist="La Boussole"
        album="Le Savoir Est Une Arme"
        title="08-instance-with-éèâ"
        ...
    
    -Ultimate filename with its root folder :
        "/home/music/La Boussole/Le Savoir Est Une Arme/08 - Instance with.mp3"