* wip

* SLO works with auth slo handler route

* move slo handling endpoint to /auth/sso/handle_slo

* fix slo redirect url

* SLO works, and the sso-handle-slo for saml is where it belongs

- a ton of cleanup

* fix api/session namespace + add docstrings

* cleaning up logout action

* add slo logout test along with slo response xml

* whitespace + linter

* add docstring

* update exclusions in deps.edn

* un-require metabase-enterprise ns from oss ns

* add docs for how to setup SLO to metabase docs

* docs: clarify that setting up SLO is optional

* move slo logout endpoint into ee code

- removes sso-info defenterprise since it is no longer needed

* use current version of saml20-clj

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Co-authored-by: Nick Fitzpatrick <nickfitz.582@gmail.com>