Added basic test, first version, not working/complete yet.
Merge branch 'introducing-multigraph' of https://github.com/md-systems/monitoring into introducing-multigraph
Merge branch 'introducing-multigraph' of https://github.com/md-systems/monitoring into introducing-multigraph
Merge branch 'introducing-multigraph' of https://github.com/md-systems/monitoring into introducing-multigraph
Added tests for creating multigraph sensor bundles.