Support Cron type and resource usages (cpu) type
scalling
integrate with OAM by getting child deployment resource via OAM util library
support scaling PodSpecWorkload
support deployment scaling
remove unnecessary comment
support KEDA cron + resource metrics with Keda context
fix ownerreference issue
reorg imports
address part of commemts and refactor code
revert ownerRef settings as somehome leaving spec.replicas doesn't work