Tessa

- Deactivate disfunctional yahoo search and warn as not implemented.
- Make coingecko work properly again:
- Retrieve 365 days of historical data only, since this is what the public api allows.
- Introduce new exception in cases where the limit is exceeded.
- Make `price_point` more robust by raising `ValueError` if requested date and available date are more than `max_date_deviation_days` apart.

- Update README
- Expose/raise all yfinance exceptions, fix 19

What's Changed
* Remove some dev dependencies to prevent readline issue with Python 3.10 on Windows
* Python-latest by DouweM in https://github.com/ymyke/tessa/pull/15

New Contributors
* DouweM made their first contribution in https://github.com/ymyke/tessa/pull/15

**Full Changelog**: https://github.com/ymyke/tessa/compare/v0.7.1...v0.8.0

The coingecko source will now by default retry (applying exponential back-off) when it encounters a 429.

- Add and use `get_price_history_bruteforcefully`. It ignores certain server-side error conditions and simply retries data retrieval a number of times. This helps to automatically work around intermittent issues with the underlying APIs.
- Improve lru_cache wrapper in order to expose `get_price_history`'s signature.