Integrate with Google 'Secure LDAP' to allow user management and auth with GSuite and Cloud Identity

Problem to solve

Integrate with this new feature from Google: https://cloud.google.com/blog/products/identity-security/cloud-identity-now-provides-access-to-traditional-apps-with-secure-ldap

Further details

• Organisations using Google G Suite or Cloud identity will be able to easily manage users, groups and auth from the Google management console
• Exposure for GitLab in the directory of applications

Proposal

What does success look like, and how can we measure that?

An admin can connect GitLab to Google Secure LDAP

Links / references

• https://cloud.google.com/blog/products/identity-security/cloud-identity-now-provides-access-to-traditional-apps-with-secure-ldap
• https://gsuiteupdates.googleblog.com/2018/11/secure-ldap-now-available-simplify-login.html

@jeremy