This pr makes sure there is way to disable URL drilldown feature.
I decided to extract Url drilldown definition into a separate plugin to benefit from regular disabling a plugin feature.
Having it as a separate plugin also makes sense because we will start adding registries specific to URL drilldown implementation
Co-authored-by: Elastic Machine <elasticmachine@users.noreply.github.com>
Team agreed that we'd like to release URL drilldown MVP as Beta.
Reasons for it:
1. Caveats in current URL drilldown UX (dummy values in preview, too vague triggers, {{event.points}} hack). It might that improving those would require a breaking change in an API. We will do our best to handle changes with migrations, but there could be edge cases we won't be able to cover.
2. We decided not to rush with extending url templating capabilities with more helpers. We could find out from early feedback that essential helpers are required. Even though this won't be breaking, worth mentioning here.
3. Since URL drilldown is a new feature and relies on user's input, we might get early feedback that would required us for a significant changes in the feature. Make it Beta gives us more room for a pivot in this case.
4. API Action concept might change how we reason about URL drilldown
Co-authored-by: Elastic Machine <elasticmachine@users.noreply.github.com>
