…ment + Artifact Download and Distribution (elastic#67707)

* stub out task for the exceptions list packager

* Hits list code and pages

* refactor

* Begin adding saved object and type definitions

* Transforms to endpoint exceptions

* Get internal SO client

* update messaging

* cleanup

* Integrating with task manager

* Integrated with task manager properly

* Begin adding schemas

* Add multiple OS and schema version support

* filter by OS

* Fixing sort

* Move to security_solutions

* siem -> securitySolution

* Progress on downloads, cleanup

* Add config, update artifact creation, add TODOs

* Fixing buffer serialization problem

* Adding cleanup to task

* Handle HEAD req

* proper header

* More robust task management

* single -> agnostic

* Fix OS filtering

* Scaffolding digital signatures / tests

* Adds rotue for creating endpoint user

* Cleanup

* persisting user

* Adding route to fetch created user

* Addings tests for translating exceptions

* Adding test for download API

* Download tweaks + artifact generation fixes

* reorganize

* fix imports

* Fixing test

* Changes id of SO

* integration tests setup

* Add first integration tests

* Cache layer

* more schema validation

* Set up for manifest update

* minor change

* remove setup code

* add manifest schema

* refactoring

* manifest rewrite (partial)

* finish scaffolding new manifest logic

* syntax errors

* more refactoring

* Move to endpoint directory

* minor cleanup

* clean up old artifacts

* Use diff appropriately

* Fix download

* schedule task on interval

* Split up into client/manager

* more mocks

* config interval

* Fixing download tests and adding cache tests

* lint

* mo money, mo progress

* Converting to io-ts

* More tests and mocks

* even more tests and mocks

* Merging both refactors

* Adding more tests for the convertion layer

* fix conflicts

* Adding lzma types

* Bug fixes

* lint

* resolve some type errors

* Adding back in cache

* Fixing download test

* Changing cache to be sized

* Fix manifest manager initialization

* Hook up datasource service

* Fix download tests

* Incremental progress

* Adds integration with ingest manager for auth

* Update test fixture

* Add manifest dispatch

* Refactoring to use the same SO Client from ingest

* bug fixes

* build renovate config

* Fix endpoint_app_context_services tests

* Only index the fields that are necessary for searching

* Integ test progress

* mock and test city

* Add task tests

* Tests for artifact_client and manifest_client

* Add manifest_manager tests

* minor refactor

* Finish manifest_manager tests

* Type errors

* Update integ test

* Type errors, final cleanup

* Fix integration test and add test for invalid api key

* minor fixup

* Remove compression

* Update task interval

* Removing .text suffix from translated list

* Fixes hashes for unit tests

* clean up yarn.lock

* Remove lzma-native from package.json

* missed updating one of the tests

Co-authored-by: Alex Kahan <[email protected]>