Improve the meta data for scheduled repository jobs configuration wrt config vs system

Runtime, new jobs can be added below

/hippo:configuration/hippo:modules/scheduler/hippo:moduleconfig

The above node is bootstrapped by the repository as config, but it does not have

.meta:residual-child-node-category: system

meaning that on a new deploy when the 'hippo:moduleconfig' config has changes, it replaces the entire 'hippo:moduleconfig' including its children. This is undesirable since it might remove runtime added jobs. The hippo:moduleconfig should get '.meta:residual-child-node-category: system' to avoid this

Bootstrapped configuration for the FormDataCleanup job and EventLogCleanup should have a crontrigger that has the 'hipposched:enabled' property as system such that is switched off in production, a new bootstrap will never reset it automatically. 'hipposched:enabled' should therefor be system