Add support for AppBeat in IMC

[rasheedamir]

Add support for AppBeat in IMC to monitor the uptime of web applications / microservices deployed to kubernetes/openshift

https://www.appbeat.io/

Conventions to follow: https://github.com/stakater/IngressMonitorController/blob/master/docs/developing/conventions.md

PR's are very welcome

[github-actions]

This issue is stale because it has been open for 60 days with no activity.

[github-actions]

This issue was closed because it has been inactive for 30 days since being marked as stale.

[karl-johan-grahn]

Reopening issues that inadvertently were closed as stale