* move test_helpers to the core
* create base tsconfig
* all tsconfigs use the base one
* use test_helpers exposed from the src/core
* move getFieldFormatsRegistry to data plugin
* add test_utils project
* compile types after checkout
* add a stub for platform tsconfig.json
* fix broken import
* fix broken path to the base config
* set tsBuildInfoFile for project without outDir
* do not commit tsbuildinfo file
* do not check output d.ts files
* fix type error
* use separate config to build types
* rollback changes to include paths
* mute import zone error
* rename files to avoid references to tsd
* do not use tsd for type tests
* include all ts files in project
* run buildRefs before type check to ensure the latest version
* store tsbuildinfo locally
* update paths to base config
* comment out core/tsconfig.json
* remove ui path
* fix wrong tsbuildinfo path
* Kibana developer examples
* Batch explorer tests should be run in examples config
* Fix tests
* add codeowner for new developer examples plugin & readme cleanup
* Try to frame embeddable wording based on what a developer's goals are.
* Add noopener noreferer, fix bad merge
* Remove bfetch.png
Co-authored-by: Elastic Machine <elasticmachine@users.noreply.github.com>
* add plugin own contract as third element of getStartServices result
* adapt plugins code
* update tests
* revert unknown to use void again
* update generated doc
* fix UT
* update mock to allow non-object `pluginStartContract`
* add @typeParam documentation