Support allure metadata in playwright test and group annotations v2.0

[epszaw]

Context

The PR is a just continuation of #1220.

After a short discussion with @baev, we decided to divide Playwright annotations on 3 different types:

• well-known annotations such as fixme, issue, skip etc., which should be processed in a certain way
• Allure Metadata annotations which starts with @allure. or allure. prefix (e.g. @allure.id or allure.label.epic) which appears in the labels
• rest annotations which should be presented as empty steps with name matching annotation name: annotation description pattern

Checklist

• Sign Allure CLA
• Provide unit tests