Improve chart origin detecting

[undera]

There's some more info in chart that we can use to map back to its origins: https://github.com/FairwindsOps/nova/blob/master/pkg/helm/chartrepo.go#L231

Use it in repo suggest, somewhere else?

[warjiang]

it will be better if background routine can allow use make a config of period check chart upgrade, instead of check version of charts manually

[undera]

@warjiang That already exists for a while This issue talks about different thing - how we "guess" the source repo for the chart