Add a new Bitbucket service to support creating a commit status and creating a comment to the associated pull requests

[nan-yu]

There is no Bitbucket integration for status update. The only way is to configure the webhook to send a REST request, but it only supports one single REST call.

If we want to create both a commit status and a comment to the associated pull requests, it's better to have a Bitbucket service.

[Almenon]

This would be nice. I'd like ArgoCD to notify the PR submitter that their PR has been deployed.