API: Set approval override settings when creating a project through the API
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### Problem to solve
Allow for setting `Can override approvers and approvals required per merge request` when creating a project from the API.
### What does success look like, and how can we measure that?
Users are able to set `Can override approvers and approvals required per merge request` at project creating from the API.
### Links / references
Customer ticket: https://gitlab.zendesk.com/agent/tickets/107987
/cc @jramsay
issue