## Summary
In this PR, I'm relocating all Kibana Security types (along with a few
schemas necessary for some of these types, unfortunately) that are part
of public contracts to separate packages. This change will enable any
plugin to utilize Security APIs via "static" or
["runtime"](https://github.com/elastic/kibana/pull/167113) dependencies,
regardless of whether Kibana Security already relies on these plugins or
not.
__NOTE TO REVIEWERS:__ I tried to minimize changes as much as I could
via moving only necessary types. I also didn't move deprecated parts of
the Setup/Start contracts to these new packages.
__Triggered by:__ https://github.com/elastic/kibana/pull/168910
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Co-authored-by: kibanamachine <42973632+kibanamachine@users.noreply.github.com>
