[PoC] Autogenerate angklung assignment

Up and Running

pip3 install -r requirements.txt

To run:

python3 main.py

Docx requirement

Mostly based on how the Avengers.docx are set up

1. I expect there is a title for the song, because I will skip the first line
2. I expect the angklung parts to be annotated with "Ang."
3. I expect the sheets to be in a table format. Each crotchet (beat) is in its own cells. This should result in a 4D nested list representing the whole documents when parsed
4. I expect the bar numbers to only be in the first barline, because I will remove it afterwards