Chanalyze

changes

- Added word cloud generation support
- Can accumulate all message(s) sent by each participant & generates word cloud with ASCII words

- Added chat activity heatmap generation support, depicting user activity in chat under inspection, across weekdays, over several weeks
- Github style heatmap

- Added unicode character decoding failure handler

Thanks to [lewis-munyi](https://github.com/lewis-munyi) for reporting this :)

- Added concurrency support using `python-ray` module
- Yeah now it runs faster :trophy:

- Added local caching support of emoji data


- Improved *title section in plots*, with more info related to chat timespan
- Running time denotation of cli tool

etc. :wink: