LFS direct upload port to CE

What does this MR do?

This MR port ~lfs Object Storage direct upload to GitLab CE distribution.

EE MR: gitlab-org/gitlab-ee!5122

Backports

• Store lfs on object storage by default gitlab-org/gitlab-ee!4794
• lfs ~"technical debt" gitlab-ee!4932
• Bump fog-google to 1.3.3 gitlab-ee!4999
• Fix proxy_download support for lfs controller gitlab-ee!4894

Are there points in the code the reviewer needs to double check?

Why was this MR needed?

Screenshots (if relevant)

Does this MR meet the acceptance criteria?

• Changelog entry added, if necessary
• Documentation created/updated
• API support added
• Tests added for this feature/bug
• Review
  • Has been reviewed by UX
  • Has been reviewed by Frontend
  • Has been reviewed by Backend
  • Has been reviewed by Database
• Conform by the merge request performance guides
• Conform by the style guides
• Squashed related commits together
• Internationalization required/considered
• End-to-end tests pass (package-qa manual pipeline job)

What are the relevant issue numbers?

• gitlab-org/gitlab-ce#40781
• closes gitlab-org/gitlab-ce#44548

/cc @mbergeron @ayufan @dosuken123