Add NWS weather (#23647)

* Add nws weather.

* Hassfest

* Address multiple comments

* Add NWS icon weather code link

* Add metar fallback.

Use metar code from nws observation if normal api is missing data.

* only get 1 observation - we dont use more than 1

* add mocked metar for tests

* lint

* mock metar package for all tests

* add check for metar attributes

* catch errors in setup

* add timeout error

* handle request exceptions

* check and test for missing observations

* refactor to new pynws

* change to simpler api

* Make py3.5 compatible

Remove f string

* bump pynws version

* gen_requirements

* fix wind bearing observation

* Revert "Make py3.5 compatible"

This reverts commit 4946d91779a6e539ea43e667b2265557a49a0bb5.

* Precommit black missed a file?

* black test

* add exceptional weather condition

* bump pynws version

* update requirements_all

* address comments

* move observation and forecast outside try-except-else

* Revert "move observation and forecast outside try-except-else"

This reverts commit 53b78b32837b55b8a0b61de6192e846f6a486754.

* remove else from update forecast block

* remove unneeded ConfigEntryNotReady import

* add scan_interval, reduce min_time_between_updates

* pytest tests

* lint test docstring

* use async await

* lat and lon inclusive in config