* backup more namespaces in Embedded Cluster

* backup installation kinds

* allow any kots.io/backup labels to be backed up in embedded cluster

* tag installation kind with 'infrastructure' tag

* refactors and improvements

* you CAN have multiple label selectors

* no double slash label

* change to a replicated.com label

* simplify what labels we back up

* use ec-install label value for installation object

* pass entire labelselector to k8s

* proper labelselector fix

* add 'this is an embedded cluster' annotation to backup only if true

* remove unused const

* logic issue

* add a unit test that actually validates that the label selector generation works

* add the embedded cluster ID to the backup metadata