Centralize LDAP config/filter logic
What does this MR do?
Centralized all LDAP config logic in to Gitlab::LDAP::Config. We had varying configuration for devise/omniauth and other things. For example, user_filter was never taken in to account for devise/omniauth so a user object would always be created, even if the user did not match the user_filter.
Fixes gitlab-org/gitlab-ce#21195, https://gitlab.com/gitlab-org/gitlab-ce/issues/15396 and gitlab-org/gitlab-ce#13296
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CHANGELOG entry added -
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API support added - Tests
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All builds are passing
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Conform by the merge request performance guides -
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Branch has no merge conflicts with master(if you do - rebase it please) -
Squashed related commits together