Provide the ability to implement IP Allowlist on a Space level

Current Scenario

Confluence Cloud Premium allows customers to implement IP Allowlisting on the site level - a really useful way to secure access to your site.

Proposed Solution

Some admins would like to implement IP Allowlisting on a specific Space, without affecting the rest of the site. This would be useful when intending to share some pages with a small audience, as you wouldn't need to implement the functionality on the entire site, and therefore include all your users on the allowlist.