More flags to control what is generated

[alanmeadows]

For our use case, we really want to leverage helmify to keep CRDs and RBAC up to date with changes in the chart kept in the same repository that houses a large set of controllers.

However, we want to maintain the chart (e.g. deployment, values, and so on) ourselves. We would really benefit from individual flags within helmify to control what it generates and what it doesn't (e.g. only do CRDs and RBAC).

[arttor]

Very good suggestion @alanmeadows ! I was thinking to add something like this:

helmify --only=rbac,crd
helmify --skip=deployment,configmap

What do you think?