Return ssh_url_to_repo with projects/?simple=true

Description

Currently simple=true return following set of fields

• id
• http_url_to_repo
• web_url
• name
• name_with_namespace
• path
• path_with_namespace

Proposal

Add ssh_url_to_repo to this list

As side note One would expect /groups/:id/project endpoint and /projects endpoints to accept same parameters.

Current problem inconsistency is with fields

• ci_enabled_first
• simple

Links / references

see gitlab-ce/issues/22935