Identify unmatched upgrade/uninstall steps

[itowlson]

We could create a command that looks at all the install steps and goes "is there a matching step in upgrade and uninstall" e.g. a Helm step that creates a Helm release but isn't paired with another Helm step to remove that release. Not sure if this is feasible or makes sense, but might address a likely source of mistakes if we can make it viable.