* This commit contains the actual changes to support dynamic client injection.
* Incorporate n3wscott review nits
* This includes the code-generation for the dynamic client-based injection.
This also includes a number of manually created files of the form `*_expansion.go`, which are needed to satisfy some of the Kubernetes manual type "expansions". At present, these are all simply `panic("NYI")`, but may become more than that in the future.
This creates a base library that enables us to leverage the dependency
graph to convey injection dependencies. Our controllers will start
to get their informers off of a `context.Context` via `fooinformers.Get(ctx)`.
By simply linking `fooinformers` to access the informer in this way, we trigger
a cascade of `init`-time registrations for the informer, and its transitive
dependencies (e.g. shared informer factory, client).
The `ctx` is infused with these informers in `package main` by linking the
appropriate reconcilers (transitively registering everything) and then calling
`sharedmain.Main()` (from `github.com/knative/pkg/injection/sharedmain`).
Dave Protasowski
Matt Moore
Markus Thömmes
Matt Moore