Yfinance-cache

Fix bug in ` calendar` update

Features:
- add options contracts
- add missing properties for holders and analyst stuff

Fixes:
- handle Yahoo changing `earnings_dates` (get dates from `calendar`)

Mostly fixes for refreshing financials and info. Small fixes to prices.

Features:
- add `yfc.options.calendar.accept_unexpected_Yahoo_intervals`, to stop prompt 'Accept into cache anyway?'

Fixes:
- fix for not knowing day-before close for a newly-fetched dividend
- little bugfix for `get_release_dates`
- another Pandas TypeError
- `GetTimestampNextSession()` handles long Chinese holiday
- tweak date printing in verify's debug output

Summary:
- more exchanges
- fixes:
- improve mapping financials -> release dates
- fix issues in dividend handling
- improve detecting listing date
- price-repair improvements
- improve `verify` experience

Full changelog: https://github.com/ValueRaider/yfinance-cache/commit/c6449ebffab29b82909ffcea6b94e7754c1f695a