Tessa

- 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.

- Use of new metadata feature in yfinance massively speeds up price retrieval because the currency can now be retrieved via the history's metadata instead of additional calls to the Yahoo API.
- yfinance made timezones more accurate. Adjusted a number of tests accordingly.
- Fixes https://github.com/ymyke/tessa/issues/13
- Fixes https://github.com/ymyke/tessa/issues/14 (and similar issues)
- Requires update to yfinance >=v0.2.3