Check_MK Werk 7341: Web-API: Add API calls for the new Grafana datasource

ID: 7341 Title: Web-API: Add API calls for the new Grafana datasource Component: Multisite Level: 2 Class: New feature Version: 1.6.0i1 We'll release a Grafana datasource for Check_MK shortly. To be able to use the datasource with the current stable version of Check_MK we backport the API calls that are needed for this datasource with this werk. If you are curious, you can have a look at the code of the datasource: https://github.com/tribe29/grafana-checkmk-datasource You could even setup the datasource with a daily build or starting with 1.5.0p16 from now. We are heading to make this plugin directly available via grafana.com as official plugin in the next couple of days.