Implement Pete Norvig's spellchecker

[rutsam]

Goal: implement Pete Norvig spell checker

Definition of Done:

• [x] Gather a kinyarwanda dictionnary
• [x] Implement the application in python (and javascript if possible)
• [x] Use streamlit or gradio for a demo
• [x] Share with the mbaza-nlp community for feedback

[rutsam]

Some reference links:

1. Pete Norvig blog
2. Github implementation of the algorithm in python

[twist250]

@Kira-Floris Will finish it on wednesday