Add the ability to send published build status to the CMS using the Pages core API webhooks and Payload custom endpoints

[apburnes]

When a site manager publishes, unpublishes, or deletes content, a site build is automatically kicked off to sync their deployed site with the CMS. Add an ability for users to see the site is building.

Notes

• Create a build collection that site users can read only and allow the bot user to post updates to the build and it's status
• Try to mirror the info that Pages core build captures.

Acceptance Criteria

• Create a builds collection for site users to see all of their build events
• Create a custom component so users get a real time update of their site build
• Create custom endpoint to accepts request from the bot user stored in the related Pages core site
• Send build updates from Pages core to the editor