Changing the imports with absolute paths

[MZehren]

Hi,

When installing your project with pip:

pip install 'git+https://github.com/chordify/tapcorrect#subdirectory=python&egg=tapcorrect'

and then running in Python:

import tapcorrect

I found the error:

ModuleNotFoundError: No module named 'activation'

I changed the import scheme to use absolute paths instead. I think it is the most elegant solution to allow using tapcorrect in other packages.