Improve kudo init (for upgrade)

[kensipe]

The current solution for init is somewhat naive... it creates resources if they don't exist... it doesn't check to see if the exist resources are the correct version and it doesn't update. There potential issues in init after an init... in particular if the second init is a different version than the first init. There is also the need or desire to "upgrade" kudo... I'm not sure if that is an init or an upgrade. My first inclination is to NOT upgrade unless it is explicit... either a flag or a new command.

There is also the potential need to migrate existing crd data and operators.

[kensipe]

I should add that it would be helpful from a kudo development perspective to be able to update the kudo controller... so an upgrade would be nice!

[alenkacz]

cc. @ANeumann82 - related to the work you're doing. Should we somehow label it/link it?