* remove kbn-legacy-logging package
* remove legacy service
* remove legacy appender
* remove LegacyObjectToConfigAdapter
* gix types
* remove @hapi/good / @hapi/good-squeeze / @hapi/podium
* remove `default` appender validation for `root` logger
* remove old config key from kibana-docker
* fix FTR config
* fix dev server
* remove reference from readme
* fix unit test
* clean CLI args and remove quiet option
* fix type
* fix status test config
* remove from test config
* fix snapshot
* use another regexp
* update generated doc
* fix createRootWithSettings
* fix some integration tests
* another IT fix
* yet another IT fix
* (will be reverted) add assertion for CI failure
* Revert "(will be reverted) add assertion for CI failure"
This reverts commit 78d5560f9e.
* switch back to json layout for test
* remove legacy logging config deprecations
* address some review comments
* update documentation
* update kibana.yml config examples
* add config example for `metrics.ops`
Co-authored-by: Tyler Smalley <tyler.smalley@elastic.co>
