Revert "Created a simple note estimator"

This reverts commit 3d29aa8f48f1d3412603431aa8dfb02de4a7959d.
proviamo!
Revert "Revert "Created a simple note estimator""

This reverts commit 5314137c0cfd3f5758f08b80688e2d1746669333.
Merge pull request #2 from berdav/note_finder

aggiunto test