Add notify_events notify integration (#36049)
* Add new notify_events notification component
* Fix manifest
* Formatting fix
* Black formatting + CODEOWNERS
* Fix requirements_all.txt
* Flake8 warning fix
* Isort fixes
* Update notify-events library requirement version
* Replace Exception to more suitable and update lib version
* Reformat integration according to "0007-integration-config-yaml-structure.md"
* Update homeassistant/components/notify_events/manifest.json
Co-authored-by: Martin Hjelmare <marhje52@gmail.com>
* Fix manifest + remove async
* Black formatting
Co-authored-by: Martin Hjelmare <marhje52@gmail.com>
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